Sightings 2012 Vogelplas Starrevaart, Vlietland and Leidschendammerhout

2012: jan, feb, mar, apr, may, jun, jun, jul, aug, sep, oct, nov, dec, observers

Sightings 2012

red is a rare or scarce species
green is early (first) or late sighting
blue is a high count
blue is a count that exceeds the 1% level

The 1% level is an indicator of the importance of a wetland area. If 1% of the total North-West European population of a bird species is present on a regular basis, the site is of international importance. See also "De 1%-soorten van de Meeslouwerpolder en de Vogelplas Starrevaart" (in Dutch) and Population estimates and 1%-levels for waterbird species occurring in the Netherlands: suggestion for standardisation, P.L. Meininger, H. Schekkerman, en M.W.J. van Roomen, Limosa, 68(2):41, 1995.

December 2012

December 30 - Common Shelduck 39, Eurasian Curlew 500, Lesser Black-backed Gull 2, Water Pipit 2, Cetti's Warbler 1, Common Starling 1200.
Meeslouwerplas: Great Crested Grebe 14, Little Egret 1, Great Egret 41, Water Rail 4, Great Black-backed Gull 1, Common Reed Bunting 1.

Little Egret went to roost amongst the Great Egrets, 30-12-2012

December 29 - Great Bittern 1, Little Egret 1, Great Egret 14 (gathering on the mud flat).
December 28 - Great Egret 1, Common Goldeneye 2 male 1 female.
Passing: Greater White-fronted Goose 460 SW.
December 27 - Great Egret 5, Bewick's Swan 11 adult 4 juvenile, Greylag Goose 650, Common Shelduck 30, Common Teal 32, Red-crested Pochard 1 male 1 female, Common Pochard 12 male 9 female, Common Goldeneye 4 male 6 female, Northern Lapwing 600, Eurasian Curlew 400, Lesser Black-backed Gull 2.
December 25 - Common Shelduck 10, Northern Pintail 12, Smew 1 male 1 female.
December 24 - Little Grebe 1, Great Egret 2, Common Shelduck 21, Eurasian Wigeon 8000, Common Teal 22, Northern Pintail 13 male 2 female, Common Pochard 20, Tufted Duck 176, Common Goldeneye 4 male 5 female, Smew 1 female, Common Buzzard 2, Northern Lapwing 800, Eurasian Curlew 450, Long-tailed Tit 14, Blue Tit 3, Common Chaffinch 8.
December 23 - Little Grebe 1, Grey Heron 2, Greater White-fronted Goose 300, Canada Goose 20, Common Shelduck 14, Northern Shoveler 143, Common Goldeneye 2 male 5 female, Northern Lapwing 700, Eurasian Curlew 650, Great Black-backed Gull 1.
Meeslouwerplas: Great Egret 26 (roost), Common Buzzard 1, Water Pipit 1, Long-tailed Tit 10.
December 18 - Little Grebe 1, Great Cormorant 8, Great Bittern 1 (along path to hide), Great Egret 1, Grey Heron 2, Common Buzzard 1, Common Kestrel 2, Common Snipe 2, Eurasian Curlew 32, Fieldfare 7, Cetti's Warbler 1 (north west side).
December 17 - Little Grebe 1, Great Bittern 1 (from 4:30 PM in SW side), Great Egret 2, Greylag Goose 450, Common Shelduck 20, Northern Pintail 10 male 3 female, Common Goldeneye 8, Common Buzzard 2, Northern Lapwing 400, Common Snipe 1, Eurasian Curlew 600, Long-tailed Tit 8.
December 16 - Canada Goose 50, Common Shelduck 12, Common Goldeneye 2 male 3 female, Common Buzzard 2, Common Kestrel 1, Common Snipe 1, Eurasian Curlew 890, Common Reed Bunting 1.
Meeslouwerplas: Little Grebe 2, Great Crested Grebe 9, Great Cormorant 4, Great Egret 24 (roost), Egyptian Goose 6, Northern Goshawk 1 juvenile, Water Rail 2, Water Pipit 15 (roost), European Goldfinch 2.
Passing: White Stork 1.
December 13 - Little Grebe 1, Great Cormorant 7, Great Egret 1, Grey Heron 1, Mute Swan 4, Common Shelduck 24, Common Teal 97, Northern Pintail 13 male 3 female, Common Goldeneye 1 male 1 female 2 female type, Smew 1 female, Eurasian Curlew >900.
Meeslouwerplas: Great Egret 8.
Leidschendammerhout: Great Egret 1, White Stork 2, Common Buzzard 2.
December 12 - Great Cormorant 9, Great Egret 1, Greater White-fronted Goose 20, Greylag Goose 250, Egyptian Goose 10, Common Shelduck 14, Eurasian Wigeon 6500, Northern Shoveler 120, Tufted Duck 160, Common Goldeneye 4, Northern Goshawk 1 (4:40 PM, flying low over the water), Eurasian Sparrowhawk 1, Northern Lapwing 250, Common Snipe 1, Eurasian Curlew 700, Lesser Black-backed Gull 2.
Passing: Greater White-fronted Goose 160 NW.
December 10 - Great Egret 3, Bewick's Swan 8 adult 7 juvenile, Greater White-fronted Goose 40, Common Goldeneye 2, Common Buzzard 2 (shortly present on shell island), Common Snipe 1, Eurasian Curlew 300.
Leidschendammerhout: Greater White-fronted Goose 160, Greylag Goose 80, Barnacle Goose 70, Egyptian Goose 5, Gadwall 19, Common Teal 11, Northern Pintail 2, Northern Shoveler 5, Common Buzzard 1.
December 8 - Great Bittern 1 (4:30 PM, NE-side), Great Egret 1, Bewick's Swan 31 adult 15 juvenile, Whooper Swan 1, Common Shelduck 36, Common Teal 68, Northern Pintail 21, Common Goldeneye 1, Smew 1 female, Common Snipe 1, Eurasian Curlew 550.
Meeslouwerplas: Water Rail 1, Common Snipe 1.

In wintertime we see arrivals of Geese that are damaged by hunters, like this Greylag Goose, 8-12-2012 (Photo © Freek Meijer)

December 6 - Little Grebe 1, Great Cormorant 10, Great Bittern 1 (SE side), Great Egret 1, Common Shelduck 31, Eurasian Wigeon 6400, Common Teal 71, Northern Pintail 24, Common Goldeneye 5, Northern Lapwing 160, Common Snipe 4, Eurasian Curlew 350.
December 5 - Little Grebe 3, Great Egret 10 (roost), Bewick's Swan 3, Greater White-fronted Goose 900, Barnacle Goose 70, Common Teal 15, Northern Pintail 15, Northern Shoveler 220, Common Goldeneye 3, Common Buzzard 4, Water Rail 1, Eurasian Curlew 870, Common Kingfisher 1, Water Pipit 24, Fieldfare 1, Cetti's Warbler 1, Long-tailed Tit 10, Common Reed Bunting 3.
December 1 - Great Egret 1, Common Shelduck 31, Tufted Duck 163, Common Goldeneye 4, Common Kestrel 1, Common Snipe 3, Lesser Black-backed Gull 4.
Vlietland: Little Grebe 6, Great Crested Grebe 19, Canada Goose 1, Eurasian Wigeon 30, Gadwall 241, Common Teal 4, Tufted Duck 30, Common Goldeneye 1, Northern Goshawk 1 male 1 female, Eurasian Sparrowhawk 1, Common Buzzard 2, Goldcrest 4.

November 2012

November 30 - Common Kingfisher 1.
November 29 - Little Grebe 2, Great Egret 3, Greylag Goose 250, Egyptian Goose 10, Common Shelduck 41, Eurasian Wigeon 4500, Northern Pintail 17, Common Goldeneye 2 male 5 female type, Eurasian Curlew 380, Spotted Redshank 1.
Leidschendammerhout: Gadwall 11, Common Teal 31, Northern Pintail 3.
November 28 - Great Egret 3, Grey Heron 3, Greater White-fronted Goose 600, Greylag Goose 900, Barnacle Goose 10, Water Rail 1, Eurasian Curlew 900, Fieldfare 1, Cetti's Warbler 1, Bearded Reedling 2, Long-tailed Tit 8, European Greenfinch 5, European Goldfinch 1.
Meeslouwerplas: Water Rail 1, Common Kingfisher 1.
Leidschendammerhout: Eurasian Sparrowhawk 1, Common Buzzard 3, Water Rail 1.
Passing: Greater White-fronted Goose 800 N, Bohemian Waxwing 1 E.
November 26 - Little Grebe 1, Great Cormorant 12, Great Egret 4, Greylag Goose 450, Common Shelduck 33, Common Goldeneye 2, Eurasian Sparrowhawk 1 (shortly present on shell island), Common Buzzard 2, Common Snipe 1, Eurasian Curlew 470.
Passing: Greater White-fronted Goose 280 E.
November 24 - Little Grebe 1, Great Egret 2, Greater White-fronted Goose 200, Greylag Goose 450, Common Shelduck 30, Common Teal 13, Northern Pintail 19, Common Goldeneye 4, Lesser Black-backed Gull 4.
November 23 - Little Grebe 3, Great Cormorant 5, Great Egret 2, Grey Heron 3, White Stork 1, Egyptian Goose 5, Common Shelduck 22, Common Goldeneye 1, Common Buzzard 1, Common Kestrel 1, Water Rail 1, Common Snipe 5, Spotted Redshank 1, Common Blackbird 8 (path to hide), Song Thrush 2, Common Reed Bunting 3.
Meeslouwerplas: Water Rail 2, Song Thrush 1, Short-toed Tree Creeper 2, Eurasian Jay 4, Common Chaffinch 6, European Goldfinch 3.
November 22 - Little Grebe 2, Great Bittern 1 (between hide and Kniplaan), Great Egret 4, Grey Heron 2, Mute Swan 1 juvenile, Greylag Goose 300, Eurasian Wigeon 2500, Common Goldeneye 2, Northern Goshawk 1 male, Eurasian Sparrowhawk 1, Common Buzzard 1, Common Kestrel 1, Spotted Redshank 1, Common Kingfisher 1.
Leidschendammerhout: Common Buzzard 1, Common Kestrel 1.
Passing: Northern Goshawk 1.

Great Bittern, 22-11-2012 (Photo © Renée de Kleijn)

November 21 - Great Bittern 1, Great Egret 1, Common Shelduck 29, Eurasian Wigeon 2800, Common Teal 45, Northern Pintail 22, Tufted Duck 182, Common Goldeneye 4, Eurasian Curlew 190.
Passing: White Stork 2.
November 20 - Little Grebe 2, Great Egret 2, White Stork 1, Eurasian Sparrowhawk 1, Common Buzzard 1, Common Kestrel 1, Common Snipe 1, Eurasian Curlew 7, Spotted Redshank 1.
November 18 - Little Grebe 2, Great Crested Grebe 3, Great Cormorant 17, Great Egret 2, Common Shelduck 34, Eurasian Wigeon 3400, Gadwall 52, Common Teal 47, Mallard 118, Northern Pintail 5, Northern Shoveler 363, Common Pochard 8, Tufted Duck 202, Common Goldeneye 3, Northern Goshawk 2 (1cy male and adult female), Water Rail 1, Eurasian Oystercatcher 1, Eurasian Curlew 400, Spotted Redshank 1, Common Kingfisher 1.
Vlietland: Little Grebe 11, Great Crested Grebe 18, Great Cormorant 4, Mute Swan 1, Egyptian Goose 2, Gadwall 125, Mallard 104, Northern Shoveler 2, Tufted Duck 4, Common Buzzard 1, Water Rail 3, Common Moorhen 3, Eurasian Coot 434, Black-headed Gull 95, Common Gull 10, Common Kingfisher 1, Goldcrest 1, Carrion Crow 2.
Passing: Eurasian Sparrowhawk 1.

Northern Goshawk, 18-11-2012 (Photo © Theüs van Kleffens)

November 16 - Little Grebe 2, Great Egret 2, Canada Goose 13, Common Shelduck 29, Common Teal 36, Northern Pintail 23, Common Goldeneye 2 male 6 female type, Northern Goshawk 1, Common Buzzard 1, Eurasian Curlew 120.
Leidschendammerhout: White Stork 2, Gadwall 13, Common Teal 40, Northern Pintail 2, Common Buzzard 1, Common Kestrel 1.
November 15 - Great Egret 2, Greater White-fronted Goose 60, Greylag Goose 400, Common Shelduck 26, Northern Shoveler 370, Tufted Duck 157, Common Goldeneye 5, Northern Goshawk 1, Common Buzzard 1, Common Snipe 4, Eurasian Curlew 370.
Passing: Greater White-fronted Goose 250.
November 14 - Little Grebe 4, Black-necked Grebe 1, Great Cormorant 11, Great Egret 5, Greater White-fronted Goose 6, Greylag Goose 300, Egyptian Goose 4, Common Shelduck 24, Eurasian Wigeon 3800, Common Teal 15, Common Goldeneye 6, Common Buzzard 1, Common Snipe 10, Eurasian Curlew 320, Spotted Redshank 1. Panic caused by a small plane that flew at low altitude. It was probably intentional, because it was repeated 5 times..
Leidschendammerhout: Gadwall 26, Common Teal 23, Mallard 20, Northern Pintail 2, Northern Shoveler 14, Common Kestrel 1, Eurasian Woodcock 1.
Passing: Great Egret 2, Greater White-fronted Goose 45, Northern Goshawk 1.
November 11 - Great Egret 1, Tundra Bean Goose 1, Greater White-fronted Goose 660, Barnacle Goose 15, Egyptian Goose 20, Common Shelduck 28, Northern Pintail 22 male 15 female, Eurasian Sparrowhawk 1, Water Rail 2, Eurasian Curlew 600, Spotted Redshank 1, Water Pipit 8, Cetti's Warbler 2, European Goldfinch 2.
Meeslouwerplas: Little Grebe 1, Northern Goshawk 1, redpoll spec. 1.
Passing: Eurasian Skylark 1, White Wagtail 2, Bohemian Waxwing 1 W (8:48 AM), Common Blackbird 1, Fieldfare 52 SW.
November 8 - Little Grebe 3, Great Crested Grebe 13, Black-necked Grebe 1, Great Egret 1, Greylag Goose 280, Common Shelduck 29, Northern Pintail 25, Common Goldeneye 4, Common Buzzard 3, Peregrine Falcon 1, Common Snipe 7, Spotted Redshank 1.
November 5 - Little Grebe 2, Black-necked Grebe 2, Great Cormorant 19, Great Egret 2, Greylag Goose 130, Canada Goose 32, Common Shelduck 23, Eurasian Wigeon >2000, Common Teal 46, Tufted Duck 130, Common Goldeneye 3, Common Buzzard 2, Common Snipe 7, Spotted Redshank 4, Common Kingfisher 1.
Meeslouwerplas: Common Kingfisher 1, Cetti's Warbler 1.
November 3 - Little Grebe 2, Great Crested Grebe 14, Black-necked Grebe 1, Great Egret 1, Greylag Goose 170, Common Shelduck 26, Northern Pintail 24, Northern Shoveler 540, Common Goldeneye 1 male 5 female type, Common Buzzard 2, Common Snipe 14, Spotted Redshank 4, Lesser Black-backed Gull 6.
Leidschendammerhout: Great Egret 1, Mute Swan 19, Greylag Goose 240, Common Teal 32, Common Buzzard 3.
November 2 - Little Grebe 1, Great Crested Grebe 11, Black-necked Grebe 2, Great Cormorant 8, White Stork 1, Common Shelduck 25, Eurasian Wigeon 1900, Northern Pintail 18, Northern Shoveler 320, Tufted Duck 155, Common Goldeneye 5, Common Buzzard 1, Common Snipe 7, Spotted Redshank 4, Cetti's Warbler 1 (Kniplaan).
Leidschendammerhout: Mute Swan 16, Greylag Goose 70, Gadwall 52, Common Teal 23, Northern Shoveler 14, Common Buzzard 1, Common Kestrel 1, Pheasant 7, Common Moorhen 10.

October 2012

October 25 - Little Grebe 3, Black-necked Grebe 3, Great Egret 1, Common Shelduck 23, Common Teal 34, Northern Pintail 41, Common Goldeneye 1 male 1 female 2 female type, Spotted Redshank 11, Lesser Black-backed Gull 6, Black Swan 1.
October 24 - Little Grebe 3, Black-necked Grebe 3, Great Cormorant 17, Great Egret 2, Barnacle Goose 19, Eurasian Wigeon 1800, Common Goldeneye 3, Common Snipe 14, Eurasian Curlew 12, Spotted Redshank 11, Black Swan 1.
Meeslouwerplas: Cetti's Warbler 1 (near parking lot).
October 22 - Little Grebe 6, Black-necked Grebe 3, Great Cormorant 34, Great Bittern 1 (reedbed along Kniplaan), Great Egret 2, Greylag Goose 150, Egyptian Goose 8, Common Shelduck 22, Northern Pintail 48, Common Goldeneye 3, Common Snipe 6, Eurasian Curlew 19, Spotted Redshank 11, Black Tern 1, Black Swan 1.
Meeslouwerplas: Little Grebe 2, Eurasian Coot 380, Song Thrush 2.
Leidschendammerhout: Great Egret 1, White Stork 2, Rose-ringed Parakeet 5, Fieldfare 8, Song Thrush 3, Redwing 2.
October 20 - Little Grebe 1, Great Crested Grebe 9, Great Cormorant 29, Great Egret 4, Greylag Goose 180, Common Shelduck 22, Eurasian Wigeon 1700, Gadwall 260, Common Teal 25, Mallard 100, Northern Pintail 47, Northern Shoveler 545, Common Pochard 48, Common Goldeneye 2, Common Buzzard 1, Peregrine Falcon 1 (hunting at 5:10 PM, then high to west), Common Snipe 7, Eurasian Curlew 15, Spotted Redshank 17, Black-headed Gull 6000, Lesser Black-backed Gull 10, European Herring Gull 400 (2 cr-ringed), Black Tern 1, Cetti's Warbler 1 (reedbed along Kniplaan), Black Swan 1.
Vlietland: Little Grebe 4, Great Crested Grebe 45, Great Cormorant 10, Mute Swan 4, Gadwall 144, Mallard 183, Tufted Duck 2, Eurasian Sparrowhawk 1, Peregrine Falcon 1 adult (at 4:55 PM to east), Water Rail 2, Common Moorhen 6, Eurasian Coot 550, Stock Dove 12, Great Spotted Woodpecker 2, Common Blackbird 12, Redwing 15, Northern Chiffchaff 4, Goldcrest 4, Long-tailed Tit 19, Short-toed Tree Creeper 2, Eurasian Jay 2, Western Jackdaw 130, Eurasian Bullfinch 1.
October 19 - Little Grebe 2, Great Egret 3, White Stork 1, Eurasian Wigeon 2000, Northern Goshawk 1, Eurasian Sparrowhawk 1, Common Buzzard 2, Peregrine Falcon 1 juvenile, Water Rail 1, Common Moorhen 3, Common Snipe 1, Eurasian Curlew 105, Spotted Redshank 15, Great Black-backed Gull 1, Black Tern 1, Common Kingfisher 1, Cetti's Warbler 1, Black Swan 1.
Meeslouwerplas: Little Grebe 2, Mute Swan 1, Eurasian Sparrowhawk 2, Eurasian Coot 300, Song Thrush 4, Redwing 4.
Leidschendammerhout: Common Buzzard 1, Common Moorhen 9.
Passing: Eurasian Wigeon 400 S, Eurasian Skylark 60, Meadow Pipit 18, Common Starling 350, Common Chaffinch 35.
October 18 - Little Grebe 2, Great Cormorant 11, Great Egret 2, Mute Swan 7, Greylag Goose 140, Common Shelduck 26, Eurasian Wigeon 1200, Northern Pintail 57, Northern Shoveler 390, Common Pochard 45, Common Goldeneye 3, Eurasian Sparrowhawk 2, Common Snipe 2, Spotted Redshank 17, Lesser Black-backed Gull 4, Black Tern 1, Black Swan 1.
Leidschendammerhout: Great Egret 1, Gadwall 13, Common Teal 21, Northern Shoveler 16, Eurasian Sparrowhawk 1, Common Buzzard 2, Common Moorhen 10.
October 15 - Little Grebe 1, Great Cormorant 47, Great Egret 4, White Stork 4, Common Shelduck 21, Eurasian Wigeon 1300, Common Teal 28, Northern Pintail 40, Northern Shoveler 340, Tufted Duck 145, Common Goldeneye 3, Common Buzzard 1, Water Rail 1, Common Snipe 1, Spotted Redshank 17, Great Black-backed Gull 1 2cy, Black Tern 1, Black Swan 1.
Meeslouwerplas: Eurasian Coot 350.
Leidschendammerhout: Gadwall 13, Common Teal 10, Northern Shoveler 23, Common Buzzard 3.
Passing: White Stork 1, Northern Goshawk 1 S.
October 11 - Little Grebe 2, Great Cormorant 45, Great Egret 2, Eurasian Spoonbill 2, Greylag Goose 150, Barnacle Goose 290, Common Shelduck 19, Common Teal 34, Northern Pintail 59, Common Goldeneye 1, Common Snipe 2, Eurasian Curlew 8, Spotted Redshank 14, Common Kingfisher 1, Black Swan 1.
Meeslouwerplas: Great Crested Grebe 23, Eurasian Coot 400.
Leidschendammerhout: Great Egret 1, White Stork 2 (on artificial nest), Mute Swan 6, Greater White-fronted Goose 5, Greylag Goose 350, Barnacle Goose 29, Common Teal 9, Northern Shoveler 24, Common Buzzard 2, Meadow Pipit 18.
October 10 - Little Grebe 2, Great Crested Grebe 10, Great Cormorant 25, Great Bittern 1, Great Egret 3, Grey Heron 2, Eurasian Spoonbill 4, Greater White-fronted Goose 1, Greylag Goose 200, Barnacle Goose 300, Common Shelduck 11, Common Teal 5, Northern Pintail 35, Northern Shoveler 120, Common Goldeneye 1, European Golden Plover 1, Common Snipe 1, Eurasian Curlew 43, Spotted Redshank 11, Cetti's Warbler 1 (subsong, young bird?), Common Reed Bunting 1, Black Swan 1.
Leidschendammerhout: Common Snipe 4, Common Redstart 1.
October 9 - Little Grebe 2, Black-necked Grebe 1, Great Egret 3, Eurasian Spoonbill 1, Greater White-fronted Goose 50, Gadwall 82, Northern Pintail 27, Northern Shoveler 358, Common Goldeneye 1, Water Rail 3, Bearded Reedling 1, Black Swan 1.
Meeslouwerplas: Common Kingfisher 2, Yellow-browed Warbler 1 (north side of Meeslouwerplas, along Meeslouwerpad).
October 8 - Little Grebe 2, Great Egret 4, Eurasian Spoonbill 2, Greylag Goose 250, Eurasian Wigeon 650, Common Teal 32, Northern Pintail 69, Northern Shoveler 230, Common Goldeneye 2, Eurasian Oystercatcher 1, Common Snipe 1, Eurasian Curlew 37, Spotted Redshank 14, Black Swan 2.
October 6 - Little Grebe 2, Great Cormorant 80, Great Egret 3, Eurasian Spoonbill 6, Eurasian Wigeon 450, Northern Pintail 32, Common Goldeneye 1, Common Snipe 2, Eurasian Curlew 160, Spotted Redshank 16, Common Kingfisher 1, Black Swan 2.
Meeslouwerplas: Common Kingfisher 1 (pond behind parking lot).
Leidschendammerhout: Common Buzzard 4.
October 4 - Little Grebe 2, Great Cormorant 21, Great Bittern 1, Great Egret 2, Eurasian Spoonbill 12 (including 1 juvenile with a broken leg), Mute Swan 3, Common Shelduck 13, Northern Pintail 33, Garganey 1, Common Goldeneye 3, Common Buzzard 1, Common Kestrel 1, Water Rail 2, European Golden Plover 2, Common Snipe 2, Eurasian Curlew 85, Spotted Redshank 15, Cetti's Warbler 1, Black Swan 1.
Meeslouwerplas: Gadwall 40, Common Buzzard 1, Eurasian Coot 190, Rose-ringed Parakeet 1, Black Swan 1.
Leidschendammerhout: Northern Shoveler 38, Common Stonechat 1.
October 3 - Little Grebe 1, Great Egret 3, Eurasian Spoonbill 2, Common Pochard 144, Common Goldeneye 1, Pied Avocet 2.
October 2 - Little Grebe 2, Black-necked Grebe 1, Great Cormorant 37, Great Egret 5, Eurasian Spoonbill 6, Greater White-fronted Goose 155, Lesser White-fronted Goose 1, Common Shelduck 9, Eurasian Sparrowhawk 1, Water Rail 1, Pied Avocet 2, Eurasian Curlew 450, Spotted Redshank 15, Common Redshank 5, Black-headed Gull 3000, Lesser Black-backed Gull 84, Cetti's Warbler 1, Long-tailed Tit 9, Black Swan 2.
Meeslouwerplas: Great Egret 9 (roost), Common Kingfisher 1, Barn Swallow 2, Black Swan 1.
Passing: Hen Harrier 1 adult female SW (6:50 PM), Osprey 1 (11:35 AM).

Cetti's Warbler, 2-10-2012 (Photo © Adri de Groot)

October 1 - Little Grebe 2, Great Cormorant 32, Great Egret 8, Eurasian Spoonbill 26, Greater White-fronted Goose 4, Greylag Goose 700, Common Teal 41, Northern Pintail 47, Common Goldeneye 2, Peregrine Falcon 1 2cy (hunting), Pied Avocet 2, European Golden Plover 1, Common Snipe 2, Eurasian Curlew 40, Spotted Redshank 14, Barn Swallow 1, Black Swan 2.
Leidschendammerhout: Greater White-fronted Goose 6, Greylag Goose 150, Egyptian Goose 9, Gadwall 10, Common Teal 4, Northern Shoveler 54, Common Buzzard 3, Common Kestrel 1, Eurasian Curlew 107, Barn Swallow 12, Common Stonechat 2.

September 2012

September 30 - Little Grebe 1, Great Egret 10, Eurasian Spoonbill 54 (16 cr-ringed), Greater White-fronted Goose 30, Bar-headed Goose 1, Barnacle Goose 380, Egyptian Goose 134, Common Snipe 1, Eurasian Curlew 480, Spotted Redshank 11, Common Kingfisher 1, Cetti's Warbler 1, Long-tailed Tit 7, Blue Tit 10, Black Swan 1.
Meeslouwerplas: Great Crested Grebe 58 adult 14 juvenile, Common Buzzard 4, Great Black-backed Gull 1.
Leidschendammerhout: Eurasian Sparrowhawk 1, Common Buzzard 4, Common Kestrel 1, Whinchat 2, Common Stonechat 1, Northern Wheatear 1.
Passing: Common Chaffinch 8, redpoll spec. 1.
September 28 - Little Grebe 1, Great Cormorant 18, Great Egret 1, Greater White-fronted Goose 6, Greylag Goose 330, Canada Goose 3, Eurasian Wigeon 700, Common Teal 25, Northern Pintail 36, Garganey 1 (shell island), Northern Shoveler 308, Common Pochard 156, Common Goldeneye 2, Western Marsh Harrier 1 female (hunting), Common Buzzard 1, Common Kestrel 1, Pied Avocet 2, Common Snipe 1, Eurasian Curlew 13, Spotted Redshank 14, Lesser Black-backed Gull 30, Cetti's Warbler 1 (singing at Kniplaan), Black Swan 1.
Meeslouwerplas: Eurasian Sparrowhawk 1, Common Kingfisher 1, Long-tailed Tit 6, Blue Tit 14.
Leidschendammerhout: Gadwall 10, Common Teal 2, Northern Shoveler 22, Eurasian Sparrowhawk 1, Common Buzzard 3, Common Stonechat 3, European Goldfinch 1.
Passing: White Stork 28, Northern Lapwing 1600 (1 group).
September 26 - Little Grebe 1, Great Bittern 1, Great Egret 4, Eurasian Spoonbill 15, Greylag Goose 600, Canada Goose 15, Northern Pintail 14, Garganey 1 (shell island), Common Goldeneye 2, Osprey 1 (at 4:15 PM hunting succesfully on the lake), Eurasian Hobby 1, Spotted Redshank 15, Common Redshank 1, Black Swan 1.
Leidschendammerhout: Greylag Goose 200, Canada Goose 24, Egyptian Goose 5, Northern Shoveler 16, Common Buzzard 2, Common Kestrel 1, Whinchat 2, Common Stonechat 2.
September 25 - Great Cormorant 44, Great Egret 2, Eurasian Spoonbill 7, Mute Swan 2, Common Goldeneye 1 juvenile, Eurasian Sparrowhawk 1, Eurasian Curlew 31, Spotted Redshank 14, Barn Swallow 4, Common House Martin 18, Black Swan 1.
Meeslouwerplas: Long-tailed Tit 6.
September 24 - Little Grebe 2, Great Cormorant 32, Great Egret 3, Eurasian Spoonbill 4, Eurasian Wigeon 220, Common Teal 46, Northern Pintail 15, Common Pochard 92, Common Goldeneye 1, Common Buzzard 1, European Golden Plover 1, Eurasian Curlew 45, Spotted Redshank 10, Black Swan 1, Red-eared Slider 1.
Meeslouwerplas: Great Crested Grebe 51, Eurasian Coot 240.
September 22 - Little Grebe 2, Great Egret 4, Eurasian Spoonbill 16, Greylag Goose 350, Common Pochard 110, Common Goldeneye 2, Water Rail 1, European Golden Plover 40, Common Snipe 4, Eurasian Curlew 50, Spotted Redshank 12, Green Sandpiper 1, Black Swan 1.
September 21 - Little Grebe 2, Great Cormorant 72, Great Egret 3, Eurasian Spoonbill 33, Greylag Goose 320, Eurasian Wigeon 170, Gadwall 220, Common Teal 52, Northern Pintail 15, Common Pochard 115, Common Goldeneye 1, Common Snipe 3, Eurasian Curlew 23, Spotted Redshank 7, Green Sandpiper 1, Common Sandpiper 1, Common Kingfisher 1 (along hide at 5:45 PM), Black Swan 1.
September 20 - Little Grebe 2, Great Crested Grebe 13, Black-necked Grebe 1, Great Cormorant 46, Great Egret 4, Grey Heron 5, Eurasian Spoonbill 28, Mute Swan 7, Bar-headed Goose 1, Barnacle Goose 1, Common Shelduck 8, Eurasian Wigeon 70, Common Teal 41, Northern Pintail 17 male, Common Pochard 112, Common Goldeneye 3, Western Marsh Harrier 1, Common Buzzard 1, Common Kestrel 1, Common Moorhen 2, European Golden Plover 10, Ruff 1 juvenile, Common Snipe 5, Bar-tailed Godwit 1, Eurasian Curlew 30, Spotted Redshank 10, Lesser Black-backed Gull 43, Great Black-backed Gull 1, Rose-ringed Parakeet 1, Great Spotted Woodpecker 1, Barn Swallow 50, Common House Martin 20, Northern Wheatear 1 male, Cetti's Warbler 1 (near hide), Eurasian Jay 1, Black Swan 1.
Meeslouwerplas: Great Crested Grebe 95, Mute Swan 16.
Leidschendammerhout: White Stork 1, Northern Shoveler 32, Eurasian Sparrowhawk 1, Common Buzzard 1, Common Stonechat 1 female + 1 juvenile, Northern Wheatear 1 female.
September 18 - Great Egret 2, Eurasian Spoonbill 18, Common Snipe 4, Spotted Redshank 2.
September 16 - Great Egret 5, Eurasian Spoonbill 36, Barnacle Goose 320, Egyptian Goose 320 (5 cr-ringed), Water Rail 1, Ruff 1 juvenile, Eurasian Curlew 510, Common House Martin 30, Cetti's Warbler 1, Bearded Reedling 2.
Meeslouwerplas: Water Rail 1.
Passing: Meadow Pipit 3, Blue-headed Wagtail 1, Eurasian Jay 2.
September 15 - Little Grebe 2, Great Cormorant 77, Great Egret 4, Grey Heron 6, Eurasian Spoonbill 37, Greylag Goose 350, Eurasian Wigeon 33, Common Teal 49, Northern Pintail 12, Garganey 2, Common Pochard 138, Common Goldeneye 3 juvenile, Western Marsh Harrier 1 female type (feeding on cadaver in SE-side), European Golden Plover 110, Ruff 1, Common Snipe 4, Eurasian Curlew 36, Spotted Redshank 8, Green Sandpiper 1, Common Sandpiper 1, Lesser Black-backed Gull 39, Barn Swallow 35, Common House Martin 40, Black Swan 1.
Meeslouwerplas: Great Crested Grebe 35 + 15 juvenile, Mute Swan 12, Eurasian Coot 180.
Leidschendammerhout: Common House Martin 15.
Passing: Barnacle Goose 37.
September 14 - Little Grebe 1, Great Cormorant 86, Great Egret 3, Eurasian Spoonbill 32, Mute Swan 2, Common Shelduck 8, Spotted Redshank 7, Lesser Black-backed Gull 62, Barn Swallow >60, Common House Martin >30, Black Swan 1.
September 13 - Little Grebe 2, Great Cormorant 75, Great Egret 4, Eurasian Spoonbill 34, Barnacle Goose 164, Egyptian Goose 13, Eurasian Wigeon 46, Common Teal 55, Northern Pintail 13, Garganey 6, Common Pochard 126, European Golden Plover 58, Ruff 1, Eurasian Curlew 110, Spotted Redshank 8, Black Swan 1.
Meeslouwerplas: Eurasian Coot 220.
Leidschendammerhout: Gadwall 12, Common Teal 3, Northern Shoveler 34, Common Buzzard 2, Great Spotted Woodpecker 1.
September 12 - Great Egret 3, Eurasian Spoonbill 37, Barnacle Goose 440, Egyptian Goose 262 (5 cr-ringed), Northern Pintail 17, Northern Goshawk 1 juvenile male, Ruff 2 juvenile, Eurasian Curlew 480, Common House Martin 30, Bearded Reedling 1 (Kniplaan).
Meeslouwerplas: Great Crested Grebe 50 + 16 juvenile.
Passing: Eurasian Jay 4.
September 9 - Great Crested Grebe 9, Great Egret 1, Eurasian Spoonbill 31, European Golden Plover 55, Eurasian Curlew 4, Common Kingfisher 1.
September 8 - Great Egret 3, Grey Heron 8, Eurasian Spoonbill 41, Bar-headed Goose 1, Canada Goose 480 (6 rings read), Barnacle Goose 585, Egyptian Goose 380 (5 rings read), Northern Pintail 8, Ruff 1 juvenile, Eurasian Curlew 394, Spotted Redshank 8, Common Sandpiper 1, Long-tailed Tit 18, Common Starling 1500 (roost), Black Swan 1.
Passing: Stock Dove 6, Blue-headed Wagtail 1, White Wagtail 1.
September 6 - Little Grebe 2, Black-necked Grebe 2, Great Cormorant 70, Great Egret 2, Eurasian Spoonbill 38, Lesser White-fronted Goose 1 (arrived at 5 PM with Greylag Goose), Greylag Goose 1200, Barnacle Goose 172, Common Teal 46, Northern Pintail 4, Common Pochard 57, Common Goldeneye 1, Water Rail 1, Ruff 1, Spotted Redshank 9, Black Swan 1.
Meeslouwerplas: Eurasian Coot 190, Common Kingfisher 1 (pond behind parking lot), Great Spotted Woodpecker 1.
Leidschendammerhout: Common Buzzard 2.
Passing: Eurasian Hobby 1.
September 5 - Little Grebe 2, Black-necked Grebe 1, Great Egret 1, Eurasian Spoonbill 36, Lesser White-fronted Goose 1, Northern Pintail 2, Red-crested Pochard 4 (male eclipse), Ruff 4 juvenile, Spotted Redshank 10, Common Kingfisher 1.
Passing: European Golden Plover 170.
September 3 - Little Grebe 3, Black-necked Grebe 2, Great Cormorant 70, Great Egret 1, Eurasian Spoonbill 51, Mute Swan 7, Greater White-fronted Goose 1, Greylag Goose 1900, Bar-headed Goose 1, Canada Goose 3, Barnacle Goose 182, Egyptian Goose 4, Eurasian Wigeon 35, Common Teal 28, Northern Pintail 2, Common Buzzard 2, Eurasian Oystercatcher 1, European Golden Plover 50, Eurasian Curlew 160, Spotted Redshank 11, Common Tern 4, Black Tern 2, Barn Swallow 4, Black Swan 1, Red-eared Slider 1.
Meeslouwerplas: Great Crested Grebe 26 + 7 juvenile, Common Buzzard 2, Eurasian Coot 160, Black Swan 1.
Leidschendammerhout: Common Buzzard 2.
Passing: White Stork 1, European Golden Plover 45.
September 2 - Little Grebe 2, Great Crested Grebe 11, Black-necked Grebe 2, Great Egret 1, Grey Heron 4, Eurasian Spoonbill 32, Mute Swan 3, Greater White-fronted Goose 4, Greylag Goose 850, Canada Goose 180, Barnacle Goose 269, Egyptian Goose 183, Eurasian Wigeon 17, Northern Pintail 7, Northern Shoveler 268, Common Pochard 49, Water Rail 1, Eurasian Curlew 7, Spotted Redshank 11, Green Sandpiper 1, Common Sandpiper 2, Common Tern 10, Black Tern 2, Common Kingfisher 1, Common Starling 700, European Goldfinch 1, Black Swan 1.
Meeslouwerplas: Great Crested Grebe 56 + 23 juvenile, Water Rail 2, European Reed Warbler 1, Blackcap 3.
Passing: Great Cormorant 28, Stock Dove 1, White Wagtail 1, Dunnock 2.
September 1 - Eurasian Spoonbill 43, Eurasian Sparrowhawk 2, Common Buzzard 5, Eurasian Hobby 1 (hunting Barn Swallows), Common Kingfisher 1.
Passing: European Honey-buzzard 1 juvenile S.

August 2012

August 30 - Little Grebe 4, Black-necked Grebe 1, Great Egret 1, Grey Heron 5, Eurasian Spoonbill 36, Mute Swan 5, Greater White-fronted Goose 1, Eurasian Wigeon 24, Common Teal 2, Northern Pintail 1, Garganey 1, Common Goldeneye 1, Common Moorhen 2 + 2 juvenile, Eurasian Curlew 9, Spotted Redshank 3, Common Sandpiper 4, Common Tern 13, Common Swift 3, Barn Swallow >20, Common House Martin >20, Black Swan 1.
Meeslouwerplas: Black Swan 1.
Leidschendammerhout: Eurasian Sparrowhawk 1 female.
Passing: White Stork 1 N.
August 29 - Little Grebe 4, Black-necked Grebe 2, Great Egret 1, Grey Heron 6, Eurasian Spoonbill 55, Eurasian Wigeon 6, Gadwall 165, Common Teal 38, Mallard 245, Northern Pintail 2, Northern Shoveler 455, Eurasian Curlew 72, Spotted Redshank 4, Common Sandpiper 2, Black-headed Gull 4700, Common Gull 10, Lesser Black-backed Gull 114, European Herring Gull 125, Barn Swallow 45, Common Starling 800, Black Swan 1, Red-eared Slider 1.
Meeslouwerplas: Eurasian Sparrowhawk 1, Common Buzzard 1, Water Rail 1, Common Kingfisher 1.
Passing: Stock Dove 3.
August 27 - Great Egret 1, Eurasian Spoonbill 38, Water Rail 1, Spotted Redshank 2, Common House Martin 5.
Meeslouwerplas: Common Kingfisher 1, Black Swan 1.
August 24 - Great Egret 1, Eurasian Spoonbill 47, Northern Pintail 1, Water Rail 2, Spotted Redshank 3, Common Sandpiper 1, Common Swift 1, Barn Swallow 6, Black Swan 1.
Meeslouwerplas: Common Kingfisher 1.
August 22 - Little Grebe 3, Great Cormorant 45, Eurasian Spoonbill 33, Greater White-fronted Goose 1, Greylag Goose 1790, Canada Goose 780, Barnacle Goose 340, Egyptian Goose 257 (first with color rings), Eurasian Wigeon 6, Common Teal 3, Garganey 1, Common Pochard 21, Common Goldeneye 1, Eurasian Oystercatcher 2, Black-tailed Godwit 2, Eurasian Curlew 100, Spotted Redshank 6, Common Greenshank 1, Common Sandpiper 1, Common House Martin 14, Black Swan 1.
Meeslouwerplas: Great Crested Grebe 24, Gadwall 32, Eurasian Coot 220, Common Kingfisher 1 (pond near parking lot).
Leidschendammerhout: Common Buzzard 2.
Passing: White Stork 3 SW, Eurasian Spoonbill 5 NE, European Golden Plover 2.
August 20 - Little Grebe 2, Great Cormorant 57, Eurasian Spoonbill 40, Greylag Goose 250, Canada Goose 80, Egyptian Goose 50, Gadwall 144, Common Teal 8, Mallard 167, Garganey 3, Northern Shoveler 432, Eurasian Curlew 52, Spotted Redshank 5 adult 1 juvenile, Common Redshank 1, Common Sandpiper 2, Black-headed Gull 2500, Lesser Black-backed Gull 42, Barn Swallow 1300 (roost), Black Swan 1.
Meeslouwerplas: Long-eared Owl 1, Common Kingfisher 2 (in the evening also on the Starrevaart).
Passing: European Golden Plover 2.

Common Kingfisher, 20-8-2012 (Photo © Adri de Groot)

August 16 - Black-necked Grebe 1, Great Cormorant 48, Eurasian Spoonbill 30, Mute Swan 14, Barnacle Goose 33, Western Marsh Harrier 1 male, Common Buzzard 2, Eurasian Oystercatcher 2, Black-tailed Godwit 5, Eurasian Curlew 83, Spotted Redshank 2, Common Redshank 1, Common Sandpiper 2, Common Swift 3, Northern Chiffchaff 2, Black Swan 1.
August 15 - Little Grebe 2, Great Cormorant 54, White Stork 2 (on lights A4), Eurasian Spoonbill 39, Greater White-fronted Goose 6, Greylag Goose 1200, Lesser Canada Goose 5, Barnacle Goose 9, Eurasian Wigeon 1 male, Common Teal 7, Northern Shoveler 230, Common Goldeneye 2, Western Marsh Harrier 1 juvenile, Eurasian Oystercatcher 4, Ruff 1, Black-tailed Godwit 4, Eurasian Curlew 80, Spotted Redshank 3, Common Sandpiper 5, Black Swan 1.
Leidschendammerhout: Canada Goose 25, European Goldfinch 7.
Passing: Western Marsh Harrier 2, Northern Lapwing 700 (1 group).
August 14 - Great Cormorant 53, Eurasian Spoonbill 36, Greylag Goose 1100, Canada Goose 50, Barnacle Goose 32, Egyptian Goose 14, Eurasian Wigeon 2, Common Teal 5, Common Goldeneye 1, Eurasian Oystercatcher 3, Black-tailed Godwit 3, Eurasian Curlew 110, Spotted Redshank 3, Common Sandpiper 3, Black Swan 1.
Leidschendammerhout: Greylag Goose 55, Canada Goose 41.
Passing: Eurasian Hobby 1.
August 13 - Great Cormorant 32, Eurasian Spoonbill 17, Mute Swan 17, Barnacle Goose 30, Common Goldeneye 2, Common Buzzard 1, Black-tailed Godwit 6, Eurasian Curlew 3, Spotted Redshank 2, Common Sandpiper 1, Black Swan 2.
August 12 - Eurasian Spoonbill 70 (in the evening).
August 11 -
Meeslouwerplas: Common Kingfisher 2.
August 10 - Great Cormorant 51, Eurasian Spoonbill 45, Greylag Goose 750, Barnacle Goose 26, Common Teal 3, Common Goldeneye 2, Western Marsh Harrier 1 juvenile, Common Buzzard 2, Eurasian Oystercatcher 5, Black-tailed Godwit 7, Eurasian Curlew 110, Spotted Redshank 3, Common Sandpiper 1, Black Swan 1.
Leidschendammerhout: Canada Goose 165.
Passing: White Stork 2.
August 9 - Western Marsh Harrier 1 female (flew in from NE), Common Kingfisher 1.
August 8 - Great Cormorant 35, Grey Heron 5, Eurasian Spoonbill 26, Mute Swan 19, Greylag Goose 220, Gadwall 38, Common Teal 5, Mallard 106, Northern Shoveler 276, Common Goldeneye 2, Western Marsh Harrier 1 female 4 juvenile, Common Buzzard 1, Common Moorhen 7, Eurasian Oystercatcher 5, Black-tailed Godwit 5, Eurasian Curlew 19, Spotted Redshank 2, Lesser Black-backed Gull 29, Black Swan 1.
Meeslouwerplas: Great Crested Grebe 31 + 6 juvenile, Mute Swan 5, Eurasian Coot 174, Great Spotted Woodpecker 1.
August 6 - Great Cormorant 31, Eurasian Spoonbill 22, Mute Swan 24, Greylag Goose 80, Common Shelduck 13, Gadwall 37, Common Teal 2, Northern Shoveler 138, Common Pochard 13, Tufted Duck 139, Common Goldeneye 2, Western Marsh Harrier 3 juvenile, Common Buzzard 2, Common Moorhen 1 + 3 pulli (on shell island), Eurasian Oystercatcher 6, Black-tailed Godwit 7, Eurasian Curlew 1, Spotted Redshank 3, Common Sandpiper 1, Common Swift 10, Barn Swallow 8, Black Swan 2.
Leidschendammerhout: Canada Goose 18, Common Buzzard 3.
August 5 - Eurasian Spoonbill 8, Canada Goose 25, Western Marsh Harrier 1 male 2 juvenile, Eurasian Sparrowhawk 1, Common Tern 15.
Leidschendammerhout: Common Buzzard 1.
Passing: White Stork 8.
August 3 - Great Egret 2, Eurasian Spoonbill 31, Black Swan 2.
August 2 - Great Cormorant 35, Eurasian Spoonbill 4, Mute Swan 36, Greylag Goose 150, Canada Goose 16, Common Shelduck 20, Common Goldeneye 2, Western Marsh Harrier 1 male 3 juvenile, Common Buzzard 1, Eurasian Oystercatcher 9, Black-tailed Godwit 12, Spotted Redshank 3, Common Sandpiper 2, Lesser Black-backed Gull 47, Common Swift 2.
Meeslouwerplas: Great Crested Grebe 27, Great Cormorant 6, Common Buzzard 2, Eurasian Coot 170, Common Kingfisher 1 (pond behind parking lot).
Leidschendammerhout: Canada Goose 75, Common Buzzard 1, Lesser Black-backed Gull 16, Barn Swallow 16, European Goldfinch 20 (1 group).
Passing: Western Marsh Harrier 1 male.
August 1 - Eurasian Spoonbill 20, Black-tailed Godwit 60, Stock Dove 1.
Leidschendammerhout: Canada Goose 20.

July 2012

July 31 - Great Cormorant 29, Great Egret 1, Eurasian Spoonbill 7, Mute Swan 38, Tufted Duck 105 + 1 pul, Common Goldeneye 2, Western Marsh Harrier 1 male 3 juvenile, Common Buzzard 1, Common Kestrel 1, Eurasian Oystercatcher 18, Black-tailed Godwit 8, Spotted Redshank 7, Common Sandpiper 1, Lesser Black-backed Gull 76, Great Black-backed Gull 1, Stock Dove 4, Common Swift 2, Black Swan 2.
Meeslouwerplas: Great Crested Grebe 24 + 2 juvenile, Great Cormorant 11, Eurasian Coot 170.
Leidschendammerhout: White Stork 1, Common Buzzard 2, Common Kestrel 1, Barn Swallow 20, Common House Martin 4, European Goldfinch 4.
July 28 -
Meeslouwerplas: Tawny Owl 1 male 2 juvenile.
July 27 - Great Cormorant 54, Great Egret 1, Eurasian Spoonbill 30, Mute Swan 46, Greylag Goose 1100, Common Goldeneye 2, Western Marsh Harrier 3 juvenile, Eurasian Oystercatcher 19, Pied Avocet 4, Black-tailed Godwit 2, Eurasian Curlew 60, Spotted Redshank 1, Common Sandpiper 2, Black-headed Gull 1 (Hungarian ring), Black Swan 3.
Meeslouwerplas: Tawny Owl 1 male 2 juvenile.
Passing: White Stork 1.
July 26 - Great Egret 1, Eurasian Spoonbill 28, Mute Swan 46, Greater White-fronted Goose 3, Lesser White-fronted Goose 1, Black-tailed Godwit 9, Eurasian Curlew 86, Spotted Redshank 2, Black Swan 2.

Lesser White-fronted Goose, 26-7-2012 (Photo © André Leegwater)

July 25 - Great Cormorant 48, Great Egret 1, Eurasian Spoonbill 26, Mute Swan 37, Western Marsh Harrier 1 female 2 juvenile, Eurasian Oystercatcher 18, Pied Avocet 1, Ruff 1, Black-tailed Godwit 2, Eurasian Curlew 72, Spotted Redshank 2, Common Sandpiper 2, Lesser Black-backed Gull 39, Common Tern 37, Common Kingfisher 1, Black Swan 2.
Passing: White Stork 1, Northern Lapwing 1200.
July 23 - Great Cormorant 49, Eurasian Spoonbill 27, Greylag Goose 650, Common Goldeneye 1 juvenile, Western Marsh Harrier 1 female 2 juvenile, Eurasian Oystercatcher 26, Ruff 2, Black-tailed Godwit 6, Eurasian Curlew 55, Spotted Redshank 1, Common Sandpiper 2, Lesser Black-backed Gull 12, Black Swan 3.
Leidschendammerhout: Common Buzzard 2.
July 22 - Great Bittern 1 (flew behind hide towards Kniplaan), Caspian Tern 1 (flew around a few times and then continued south).
July 20 - Great Cormorant 34, Eurasian Spoonbill 35, Mute Swan 40, Greylag Goose 300, Egyptian Goose 2, Western Marsh Harrier 1 male 1 female 3 juvenile, Eurasian Oystercatcher 88, Black-tailed Godwit 14, Eurasian Curlew 70, Common Redshank 4, Black Swan 3.
Leidschendammerhout: Greylag Goose 250.
July 17 - Great Cormorant 14, Eurasian Spoonbill 14, Mute Swan 40, Northern Shoveler 46, Common Goldeneye 2 juvenile, Western Marsh Harrier 1 juvenile, Eurasian Oystercatcher 25, Black-tailed Godwit 5, Common Sandpiper 3, Lesser Black-backed Gull 17, Common Swift 200, Common House Martin 60, European Goldfinch 5, Black Swan 3.
Leidschendammerhout: Greylag Goose 160, Common Buzzard 2, Blackcap 4, European Goldfinch 8.
Passing: Western Marsh Harrier 1 male.
July 16 - Great Cormorant 13, Eurasian Spoonbill 3, Mute Swan 41, Pied Avocet 1, Common Sandpiper 1, Common Swift 351, Common House Martin 51, European Goldfinch 7, Black Swan 1.
July 14 - Great Cormorant 13, Eurasian Spoonbill 4 + 2 juvenile, Mute Swan 34, Common Shelduck 8 + 14 juvenile, Common Goldeneye 2 juvenile, Western Marsh Harrier 1 male, Eurasian Sparrowhawk 1 (with prey), Common Buzzard 1, Eurasian Oystercatcher 18, Lesser Black-backed Gull 13, Common Tern 22 + 12 pulli, Common Swift 35, Barn Swallow 25, Common House Martin 12, Black Swan 3.
Leidschendammerhout: Common Buzzard 2, Common Whitethroat 1, Blackcap 5, Common Reed Bunting 3 + 3 juvenile.
July 9 - Black-necked Grebe 2, Great Cormorant 12, Mute Swan 36, Western Marsh Harrier 1 female, Eurasian Oystercatcher 3, Common Redshank 3, Common Swift 130, Common House Martin 30.
July 8 - Eurasian Spoonbill 20, Mute Swan 34, Western Marsh Harrier 1 male 1 female, Eurasian Sparrowhawk 1, Common Buzzard 2, Common Kestrel 1, Eurasian Hobby 1, Black-tailed Godwit 15, Eurasian Curlew 11, Common Sandpiper 3, Mediterranean Gull 1 3cy, Black-headed Gull 700, Lesser Black-backed Gull 35, Common Swift 50, Barn Swallow 300, European Goldfinch 9, Black Swan 3.
Meeslouwerplas: Mute Swan 16, Gadwall 56.
Passing: Stock Dove 3, Eurasian Collared Dove 2.
July 7 - Black-necked Grebe 1, Eurasian Spoonbill 23, Mute Swan 38, Red-crested Pochard 4 male 4 female, Common Goldeneye 1 juvenile, Eurasian Oystercatcher 9, Common Redshank 3, Common Sandpiper 3, Sedge Warbler 1, Common Reed Bunting 4, Black Swan 3.
July 4 - Black-necked Grebe 3, Eurasian Spoonbill 18, Mute Swan 42, Greylag Goose 360, Common Shelduck 16 + 21 pulli, Northern Shoveler 90, Common Goldeneye 2 juvenile, Western Marsh Harrier 1 male 1 female, Common Kestrel 1 juvenile, Eurasian Oystercatcher 4, Pied Avocet 2, Black-tailed Godwit 28, Common Redshank 2, Lesser Black-backed Gull 11, Common Tern 50 (31 nests), Common Redstart 1 (near hide), Common Whitethroat 2, European Goldfinch 6, Black Swan 1.
Meeslouwerplas: Mute Swan 21, Gadwall 35, Tufted Duck 6.
Leidschendammerhout: Greylag Goose 130, Western Marsh Harrier 1 male, Common Buzzard 1, Barn Swallow 14, Blackcap 5, Northern Chiffchaff 4, Common Reed Bunting 4.
July 3 - Great Cormorant 10, Eurasian Spoonbill 18, Mute Swan 47, Greylag Goose 550, Common Shelduck 14 + 8 pulli, Common Goldeneye 1 female type, Western Marsh Harrier 1 male 1 female 1 juvenile, Common Kestrel 1, Eurasian Oystercatcher 19, Black-tailed Godwit 4, Common Redshank 1, Lesser Black-backed Gull 13, Common Tern 39 + 8 pulli, Common Swift 60, Sedge Warbler 3, Common Whitethroat 2, European Goldfinch 4, Black Swan 2.
Meeslouwerplas: Great Crested Grebe 12, Mute Swan 18, Common Shelduck 2 + 9 pulli, Eurasian Coot 80, Song Thrush 1, European Reed Warbler 1, Blackcap 6, Northern Chiffchaff 3.
Leidschendammerhout: Greylag Goose 75, Barn Swallow 15, Bluethroat 1, Common Reed Bunting 4 + 3 juvenile.
July 2 - Black-necked Grebe 1, White Stork 1, Eurasian Spoonbill 9, Common Goldeneye 1 juvenile, Western Marsh Harrier 1 female, Pied Avocet 2, Common Redshank 1, Common Whitethroat 3, European Goldfinch 5, Black Swan 2.

Common Goldeneye, 2-7-2012 (Photo © Adri de Groot)

June 2012

June 30 - Black-necked Grebe 5, Eurasian Wigeon 2, Common Kestrel 1, Eurasian Oystercatcher 2, Common Redshank 3, Bluethroat 1, Sedge Warbler 1, Common Reed Bunting 3, Black Swan 2.
Leidschendammerhout: White Stork 2 (on the artificial nest), Common Kestrel 1, Marsh Warbler 1, European Goldfinch 4, Common Reed Bunting 5.
June 29 - Great Crested Grebe 8, Black-necked Grebe 2, Eurasian Spoonbill 1, Mute Swan 44, Tufted Duck 3 female 8 pulli, Western Marsh Harrier 1 juvenile, Common Kestrel 3 juvenile, Eurasian Oystercatcher 17, Common Redshank 1, Lesser Black-backed Gull 13, Common Tern 37 + 6 pulli, Common Swift 45, Common Whitethroat 2, European Goldfinch 2, Black Swan 2.
Meeslouwerplas: Mute Swan 17, Eurasian Coot 103, Great Black-backed Gull 1 (cr-ringed).
Leidschendammerhout: White Stork 1, Greylag Goose 70, Marsh Warbler 2, Blackcap 5, Common Reed Bunting 2 + 4 juvenile.
Passing: White Stork 1.
June 28 - Black-necked Grebe 2, Eurasian Spoonbill 8, Mute Swan 40, Western Marsh Harrier 1 male 1 female 1 juvenile, Common Kestrel 1 adult 3 juvenile, Common Redshank 2, Lesser Black-backed Gull 17, Great Black-backed Gull 1, Stock Dove 2, Common Cuckoo 1, Common Whitethroat 3, European Goldfinch 4, Black Swan 2.
Leidschendammerhout: White Stork 2, Greylag Goose 90, Eurasian Oystercatcher 4, Bluethroat 1, Song Thrush 2, Common Whitethroat 3, Blackcap 5, Common Reed Bunting 4.
Passing: Eurasian Spoonbill 1, Black-tailed Godwit 14.
June 26 - Black-necked Grebe 2, Great Cormorant 10, Eurasian Spoonbill 1, Mute Swan 49, Common Shelduck 17, Western Marsh Harrier 1 male 1 female 1 juvenile, Northern Goshawk 1, Eurasian Oystercatcher 14, Pied Avocet 2, Black-tailed Godwit 36, Common Redshank 2, Lesser Black-backed Gull 16, Common Tern 34, Black Swan 2.
Meeslouwerplas: Eurasian Sparrowhawk 1.
Leidschendammerhout: White Stork 1, Western Marsh Harrier 1 male.
June 25 -
Vlietland: Long-eared Owl 1 (calling young).
June 24 - Gadwall 34, Northern Shoveler 94, Western Marsh Harrier 1 male 1 female, Common Redshank 2, Common Swift 280, Black Swan 2.
Meeslouwerplas: Northern Goshawk 1 juvenile, Common Buzzard 1, Common Kestrel 2 juvenile, Common Cuckoo 1, Cetti's Warbler 1, Blackcap 1, Northern Chiffchaff 1, Common Reed Bunting 3.
June 23 - Great Cormorant 5, Eurasian Spoonbill 2, Western Marsh Harrier 1 male 1 juvenile, Common Kestrel 2, Eurasian Oystercatcher 4, Common Tern 45 + 7 pulli, Common Swift 200, Common House Martin 40, European Goldfinch 2, Black Swan 2.
June 22 - Great Crested Grebe 9, Great Cormorant 2, Eurasian Spoonbill 4, Mute Swan 51, Common Shelduck 17, Northern Shoveler 72, Common Pochard 19, Tufted Duck 90 + 9 pulli, Western Marsh Harrier 2 male 1 female 1 juvenile (2x transfer of prey from male to female), Common Kestrel 1, Lesser Black-backed Gull 13, Common Tern 39 + 6 pulli, Common Swift 150, Common House Martin 60, Black Swan 2.
Leidschendammerhout: White Stork 2, Common Buzzard 1.
June 20 - Great Cormorant 7, Eurasian Spoonbill 7, Mute Swan 52, Common Shelduck 15 + 6 juvenile, Western Marsh Harrier 1 male 1 juvenile, Common Kestrel 1, Eurasian Oystercatcher 8, Spotted Redshank 1 (with metal ring), Common Redshank 2, Lesser Black-backed Gull 21, Common Tern 61 + 3 pulli, Black Swan 2.
Meeslouwerplas: Common Cuckoo 1.
Leidschendammerhout: Common Buzzard 1, Common Kestrel 2, Marsh Warbler 2, Common Whitethroat 2, Blackcap 6, Northern Chiffchaff 3, Willow Warbler 5, Common Reed Bunting 4.
June 19 - Eurasian Spoonbill 8, Mute Swan 53, Greylag Goose 140, Tufted Duck 3 female + 11 pulli, Western Marsh Harrier 1 female 1 juvenile, Common Kestrel 1, Eurasian Oystercatcher 7, Pied Avocet 1, Common Redshank 2, Lesser Black-backed Gull 15, Great Black-backed Gull 2 3cy, Common Tern 49 + 2 pulli, Black Swan 2.
Meeslouwerplas: Mute Swan 17, Common Cuckoo 1, Common Grasshopper Warbler 1, European Reed Warbler 2, Common Whitethroat 1, Blackcap 6, Northern Chiffchaff 3, Willow Warbler 4.
Leidschendammerhout: White Stork 2, Common Teal 1 male, Common Kestrel 1, Great Spotted Woodpecker 2, Bluethroat 1, Sedge Warbler 1, Marsh Warbler 2, Common Whitethroat 2, Blackcap 5, Northern Chiffchaff 3, Willow Warbler 4, Common Reed Bunting 3.
June 18 - Northern Goshawk 1 juvenile, Common Buzzard 3, Common Kestrel 2, Common Cuckoo 1, Song Thrush 1, Marsh Warbler 2, European Reed Warbler 3, Common Whitethroat 1, Willow Warbler 4, European Greenfinch 4, Common Reed Bunting 1.
Passing: Eurasian Spoonbill 1.
June 16 - Grey Heron 1, Mute Swan 51, Western Marsh Harrier 1 female, Common Kestrel 1 male 1 female, Great Black-backed Gull 1, Common Swift >50, Common House Martin 2, Black Swan 2.
Meeslouwerplas: Mute Swan 15, Western Marsh Harrier 2 male 2 female, Northern Goshawk 1 juvenile, Common Buzzard 1, Common Kestrel 1, Common Cuckoo 1, Song Thrush 1, Sedge Warbler 3, Marsh Warbler 1, Common Whitethroat 2, Blackcap 2, Willow Warbler 3, Blue Tit 5, Great Tit >30 (single group), Common Reed Bunting 2.
Leidschendammerhout: White Stork 1 (on nest), Common Buzzard 1, Marsh Warbler 3.
June 15 - Great Crested Grebe 8, Mute Swan 53, Common Shelduck 14, Northern Shoveler 42, Red-crested Pochard 1 female, Common Pochard 14, Tufted Duck 72 male 12 female 12 pulli, Western Marsh Harrier 1 male 1 female 1 juvenile, Common Kestrel 1, Eurasian Coot 126, Eurasian Oystercatcher 4, Common Redshank 1, Common Tern 35, Stock Dove 8 (mown field along Kniplaan), Common Swift 20, Barn Swallow 25, Common House Martin 15, Marsh Warbler 1, Common Whitethroat 2, Black Swan 2.
Leidschendammerhout: White Stork 2, Common Buzzard 1, Common Kestrel 1, Common Wood Pigeon 32, Rose-ringed Parakeet 1, Barn Swallow 10, Marsh Warbler 1, Common Whitethroat 3, Blackcap 5, Northern Chiffchaff 3, Willow Warbler 4, European Greenfinch 3, Common Reed Bunting 3.
June 12 - Great Crested Grebe 9, Mute Swan 18, Common Shelduck 12 + 5 pulli, Northern Shoveler 36, Tufted Duck 1 pair + 2 pulli, Western Marsh Harrier 1 male 1 juvenile, Common Kestrel 1, Eurasian Oystercatcher 6, Lesser Black-backed Gull 13, Common Tern 32, Common Swift 50, Barn Swallow 20, Common House Martin 30, Common Whitethroat 2, Black Swan 2.
Meeslouwerplas: Great Crested Grebe 10, Mute Swan 18, Eurasian Coot 25 + 4 pulli, Common Tern 3, Common Cuckoo 1, Song Thrush 2, European Reed Warbler 1, Blackcap 5, Northern Chiffchaff 3, Willow Warbler 4.
Leidschendammerhout: Gadwall 14 + 3 pulli, Mallard 10 + 5 pulli, Common Buzzard 2, Common Kestrel 1, Eurasian Coot 2 + 4 pulli, Common Tern 3, Rose-ringed Parakeet 1, Common Swift 2, Barn Swallow 8, Song Thrush 1, Marsh Warbler 3, Common Whitethroat 3, Blackcap 5, Northern Chiffchaff 4, Willow Warbler 4, Carrion Crow 10 + 2 begging young, European Greenfinch 2, European Goldfinch 4, Common Linnet 1, Common Reed Bunting 4.
Passing: Western Marsh Harrier 1 male, Black-tailed Godwit 10.
June 7 - Great Crested Grebe 9, Eurasian Spoonbill 1, Mute Swan 50, Greylag Goose 75, Common Shelduck 11, Eurasian Wigeon 3 male, Western Marsh Harrier 1 female, Common Kestrel 1, Eurasian Coot 96 + 6 pulli, Eurasian Oystercatcher 16, Mediterranean Gull 2 3cy, Lesser Black-backed Gull 31, Common Tern 36, Black Swan 1.
Meeslouwerplas: Little Grebe 1, Great Crested Grebe 7, Mute Swan 14, Greylag Goose 6 + 11 pulli, Red-crested Pochard 1 male, Common Buzzard 1, Eurasian Coot 12 + 6 pulli, Common Cuckoo 1, Common Kingfisher 1 (at the large lake), Song Thrush 1, European Reed Warbler 3, Blackcap 5, Northern Chiffchaff 3, Willow Warbler 4, Common Reed Bunting 1.
Leidschendammerhout: White Stork 2, Common Shelduck 8, Western Marsh Harrier 1 female, Rose-ringed Parakeet 2, Song Thrush 2, Marsh Warbler 1, Common Whitethroat 3, Blackcap 4, Northern Chiffchaff 3, Willow Warbler 4, European Goldfinch 3, Common Reed Bunting 3.
June 4 - White Stork 1, Common Buzzard 3, Common Kestrel 1, Eurasian Hobby 3, Black-tailed Godwit 40, Common Cuckoo 1, Common House Martin 2.
June 3 - Mute Swan 42, Greylag Goose 50, Common Shelduck 28, Gadwall 34, Western Marsh Harrier 1 male, Eurasian Oystercatcher 3, Black-tailed Godwit 9, Common Redshank 1, Common Gull 3, Lesser Black-backed Gull 35, European Herring Gull 14, Common Swift 20, Barn Swallow 65, Marsh Warbler 3, Common Whitethroat 1, Blackcap 2, European Greenfinch 2, Black Swan 1.
Meeslouwerplas: Mute Swan 22, Common Shelduck 1, Red-crested Pochard 2 male, Common Moorhen 1, Common Cuckoo 2 male 1 female, Barn Swallow 30, Song Thrush 3, Cetti's Warbler 1, Marsh Warbler 5, Common Whitethroat 1, Blackcap 3.
June 2 - Great Cormorant 4, Eurasian Spoonbill 2, Mute Swan 43, Greylag Goose 89, Common Shelduck 7, Gadwall 48, Mallard 1 female + 5 pulli, Garganey 1 male, Red-crested Pochard 1 male, Western Marsh Harrier 2 male, Common Kestrel 1, Eurasian Coot 65 + 5 pulli, Eurasian Oystercatcher 10, Black-tailed Godwit 68, Common Redshank 1, Lesser Black-backed Gull 19, Common Tern 38, Black Swan 1.
Meeslouwerplas: Great Crested Grebe 13, Mute Swan 12, Common Buzzard 1, Common Cuckoo 1, Song Thrush 1, European Reed Warbler 1, Blackcap 4, Northern Chiffchaff 3, Willow Warbler 4.
Leidschendammerhout: White Stork 2, Common Buzzard 2, Rose-ringed Parakeet 2, Common Cuckoo 1, Bluethroat 1, Song Thrush 2, Marsh Warbler 1, Common Whitethroat 2, Blackcap 7, Northern Chiffchaff 3, Willow Warbler 4, Common Reed Bunting 1.

May 2012

May 30 - Eurasian Spoonbill 1, Mute Swan 42, Egyptian Goose 7, Common Shelduck 5 + 2 pulli, Red-crested Pochard 1 male, Common Kestrel 1, Eurasian Coot 79, Eurasian Oystercatcher 8, Black-tailed Godwit 7, Common Redshank 1, Common Sandpiper 1, Mediterranean Gull 2, Lesser Black-backed Gull 10, Common Tern 47, European Goldfinch 1, Black Swan 1.
Meeslouwerplas: Common Cuckoo 1, Song Thrush 1, European Reed Warbler 2, Blackcap 5, Northern Chiffchaff 4, Willow Warbler 4, Common Reed Bunting 1.
Leidschendammerhout: White Stork 3, Common Buzzard 2, Common Redshank 1, Rose-ringed Parakeet 2, Common Swift 4, Great Spotted Woodpecker 2, Bluethroat 1, Song Thrush 3, Marsh Warbler 2, Blackcap 6, Northern Chiffchaff 4, Willow Warbler 5, Eurasian Jay 3, Common Reed Bunting 3.
May 28 - Eurasian Spoonbill 1, Mute Swan 42, Common Shelduck 12 + 4 pulli, Black-tailed Godwit 1, Lesser Black-backed Gull 23, Common Tern 36, Black Tern 1, Common Cuckoo 1.
Meeslouwerplas: Marsh Warbler 2.
Leidschendammerhout: White Stork 2, Common Buzzard 2, Common Redshank 1, Rose-ringed Parakeet 2, Great Spotted Woodpecker 1, Song Thrush 2.
May 22 - Mute Swan 59, Red-crested Pochard 1 male, Western Marsh Harrier 1 male 1 female, Common Kestrel 1, Eurasian Oystercatcher 8, Common Redshank 1, Lesser Black-backed Gull 13, Common Tern 26, Black Tern 1, Black Swan 1.

Black Tern, 22-5-2012 (Photo © Theüs van Kleffens)

May 21 - Black-necked Grebe 2, Mute Swan 40, Common Shelduck 34, Western Marsh Harrier 1 male 1 female, Northern Goshawk 1 juvenile, Common Buzzard 1, Whimbrel 1, Eurasian Curlew 1, Lesser Black-backed Gull 40, Common Tern 34, Common Cuckoo 1 male.
Passing: Grey Heron 2, Stock Dove 8.
May 20 - Common Kestrel 1, Common Cuckoo 1, Common Nightingale 3, Cetti's Warbler 1, Sedge Warbler 5, Marsh Warbler 2, European Reed Warbler 10, Common Whitethroat 3, Garden Warbler 3, Blackcap 5, Long-tailed Tit 2 + 7 young.
Meeslouwerplas: Red-crested Pochard 2 male, Whimbrel 1, Common Sandpiper 1, Cetti's Warbler 2.
May 19 -
Meeslouwerplas: Common Cuckoo 1, Common Nightingale 3, Bluethroat 1 (with food), Cetti's Warbler 1, Common Grasshopper Warbler 2, Sedge Warbler 5, Marsh Warbler 2, European Reed Warbler 7, Common Whitethroat 1, Garden Warbler 2, Blackcap 5.
Vlietland: Common Cuckoo 1, European Robin 1, Sedge Warbler 3, European Reed Warbler 10, Garden Warbler 3, Blackcap 3.
May 18 - Great Crested Grebe 8, Great Cormorant 2, Mute Swan 48, Greylag Goose 64 + 8 pulli, Canada Goose 2, Common Shelduck 13 + 2 pulli, Gadwall 35 male 14 female, Mallard 1 female + 5 pulli, Red-crested Pochard 1 male 1 female, Western Marsh Harrier 1 male, Common Buzzard 1, Eurasian Oystercatcher 7, Common Redshank 2, Common Sandpiper 2, Mediterranean Gull 1, Lesser Black-backed Gull 30, Common Tern 22, Black Tern 2, Common Swift 35, Barn Swallow 20, Common House Martin 2, Common Whitethroat 3, Common Reed Bunting 3.
Meeslouwerplas: Great Crested Grebe 8, Greylag Goose 4 + 12 pulli, Song Thrush 1, European Reed Warbler 1, Garden Warbler 1, Blackcap 5, Northern Chiffchaff 3, Willow Warbler 5.
Leidschendammerhout: Common Buzzard 1, Rose-ringed Parakeet 1, Common Cuckoo 1, Song Thrush 1, Common Whitethroat 3, Blackcap 5, Northern Chiffchaff 4, Willow Warbler 4, Common Reed Bunting 3.
Passing: White Stork 1, Eurasian Spoonbill 1.
May 16 - Greater White-fronted Goose 1.
Meeslouwerplas: Cetti's Warbler 1.
Leidschendammerhout: White Stork 2, Eurasian Hobby 1.
May 15 - Great Cormorant 1, Mute Swan 32, Greylag Goose 107, Common Shelduck 4, Gadwall 19 male 2 female, Common Pochard 14 male 2 female, Western Marsh Harrier 1 male, Common Buzzard 2, Common Kestrel 1, Eurasian Oystercatcher 10, Black-tailed Godwit 2, Common Redshank 1, Common Sandpiper 3, Mediterranean Gull 1 3cy, Lesser Black-backed Gull 15, Common Tern 19, Common Swift 200, Barn Swallow 70, Common House Martin 40, Common Whitethroat 1, Black Swan 1.
Meeslouwerplas: Common Cuckoo 1, Song Thrush 1, European Reed Warbler 5, Common Whitethroat 1, Garden Warbler 1, Blackcap 6, Northern Chiffchaff 3, Willow Warbler 4, Common Reed Bunting 1.
Leidschendammerhout: White Stork 4, Common Buzzard 2, Common Swift 6, Barn Swallow 4, Northern Wheatear 1 male, Song Thrush 3, Common Whitethroat 3, Blackcap 5, Northern Chiffchaff 3, Willow Warbler 4, Common Reed Bunting 1.
May 14 -
Meeslouwerplas: White Stork 1, Common Kestrel 1 male 1 female (next box), Common Nightingale 3, Song Thrush 2, Cetti's Warbler 1, Savi's Warbler 1, Sedge Warbler 4, Common Whitethroat 3, Blackcap 3, Willow Warbler 3.
May 13 - Mute Swan 25, Common Shelduck 8 + 10 pulli, Western Marsh Harrier 1 female, Black-tailed Godwit 2, Common Redshank 2, Common Sandpiper 5, Common Swift 10, Bluethroat 3, Common Whitethroat 3, European Goldfinch 1.
Meeslouwerplas: Red-crested Pochard 1 male 1 female, Northern Goshawk 1 male 1 female (breeding pair on Weegeiland), Common Kestrel 1 male 1 female, Common Cuckoo 1, Common Nightingale 4, Bluethroat 1, Cetti's Warbler 1, Common Whitethroat 3, Garden Warbler 1, Blackcap 3.
Leidschendammerhout: Common Buzzard 3, Bluethroat 1, Common Whitethroat 3, European Goldfinch 2, Common Linnet 1.
Vlietland: Common Cuckoo 1, Eurasian Green Woodpecker 1, Garden Warbler 3.
May 12 -
Meeslouwerplas: Common Cuckoo 2, Common Nightingale 5, Cetti's Warbler 1, Sedge Warbler 7, European Reed Warbler 3, Common Whitethroat 3, Blackcap 5.
May 10 - Great Crested Grebe 10, Mute Swan 17, Greylag Goose 131 + 6 pulli, Common Shelduck 6, Gadwall 35 male 7 female, Common Pochard 10 male 2 female, Western Marsh Harrier 2 male 1 female, Eurasian Oystercatcher 12, Common Redshank 1, Common Sandpiper 3, Mediterranean Gull 2 3cy (1 cr-ringed), Lesser Black-backed Gull 18, Common Tern 22, Northern Wheatear 1.
Meeslouwerplas: Red-crested Pochard 1 male 1 female, Eurasian Coot 2 + 2 pulli (pond behind parking lot), Common Cuckoo 1, Great Spotted Woodpecker 1, Blackcap 5, Northern Chiffchaff 3, Willow Warbler 4.
Leidschendammerhout: Common Kestrel 1, Common Wood Pigeon 32, Barn Swallow 4, Song Thrush 2, Blackcap 3, Willow Warbler 5, Common Reed Bunting 1.
May 8 - Great Crested Grebe 10, Eurasian Spoonbill 2, Mute Swan 16, Common Shelduck 5, Red-crested Pochard 1 male 1 female, Tufted Duck 54, Western Marsh Harrier 1 male, Eurasian Oystercatcher 8, Black-tailed Godwit 4, Common Redshank 1, Common Sandpiper 3, Lesser Black-backed Gull 12, Common Tern 34, Song Thrush 1, Common Whitethroat 1.
Meeslouwerplas: Red-crested Pochard 3 male 3 female, Dunnock 1, Blackcap 5, Northern Chiffchaff 4, Willow Warbler 4.
Leidschendammerhout: White Stork 2, Song Thrush 1, Sedge Warbler 1, Blackcap 5, Northern Chiffchaff 4, Willow Warbler 4, Western Jackdaw 45, Common Reed Bunting 1.
May 7 - Western Marsh Harrier 1 male, Bluethroat 1.
Meeslouwerplas: Red-crested Pochard 1 male 1 female, Common Cuckoo 1, Eurasian Green Woodpecker 1, Common Nightingale 3 singing, Bluethroat 1, Cetti's Warbler 1, Common Grasshopper Warbler 2, Savi's Warbler 1, European Reed Warbler 2, Garden Warbler 1, Blackcap 2, Long-tailed Tit 2.
May 6 - Eurasian Spoonbill 1, Mute Swan 20, Eurasian Wigeon 1 male, Common Goldeneye 1 female, Western Marsh Harrier 1 male, Northern Goshawk 1 male, Eurasian Sparrowhawk 1, Common Buzzard 1, Eurasian Oystercatcher 39, Common Redshank 1, Common Sandpiper 1, Black-headed Gull 110 nests, Lesser Black-backed Gull 16, Common Tern 36, Common Swift 470, Common House Martin 6, Black Swan 1.
Meeslouwerplas: Egyptian Goose 1 pair + 6 pulli, Red-crested Pochard 1 male 1 female, Common Buzzard 1, Water Rail 1 calling, Dunnock 3, Common Nightingale 2, Cetti's Warbler 1, Blackcap 5, Long-tailed Tit 2.
Leidschendammerhout: White Stork 2, Greylag Goose 75, Northern Shoveler 1, Barn Swallow 15, Common Whitethroat 2, House Sparrow 10, European Goldfinch 2.
Passing: White Stork 5, Eurasian Spoonbill 1, Common Redshank 3.

Red-crested Pochard female takes food from partner, 6-5-2012

May 5 -
Meeslouwerplas: Common Nightingale 1.
May 4 - Black-necked Grebe 2, Mute Swan 31, Greylag Goose 55, Common Shelduck 6, Eurasian Wigeon 1 male, Red-crested Pochard 1 male, Common Goldeneye 1 female, Western Marsh Harrier 1 male 1 female, Eurasian Oystercatcher 25, Common Redshank 1, Common Sandpiper 2, Common Tern 34, Common Swift 300, Barn Swallow 40, Common House Martin 70, Bluethroat 1, Song Thrush 1, Sedge Warbler 3, European Reed Warbler 2, Common Whitethroat 1, Common Reed Bunting 4.
Meeslouwerplas: Mute Swan 10, Common Sandpiper 1, Common Swift 40, Sand Martin 5, Barn Swallow 60, Common House Martin 12, Bluethroat 1, European Reed Warbler 2, Blackcap 5, Northern Chiffchaff 4, Willow Warbler 4.
Leidschendammerhout: White Stork 2, Eurasian Spoonbill 1, Common Buzzard 1, Common Cuckoo 1.
May 2 - Mute Swan 42, Common Shelduck 5, Eurasian Wigeon 1 male, Red-crested Pochard 2 male 1 female, Western Marsh Harrier 1 male, Common Kestrel 1, Eurasian Oystercatcher 22, Black-tailed Godwit 3, Common Sandpiper 3, Common Swift 60, Barn Swallow 20.
Leidschendammerhout: White Stork 1, Common Buzzard 2, Common Kestrel 2, Great Spotted Woodpecker 1, Barn Swallow 2, Northern Wheatear 1 male, Common Reed Bunting 3.
May 1 - Great Crested Grebe 16, Mute Swan 35, Greylag Goose 8 + 17 pulli, Common Shelduck 4, Eurasian Wigeon 2 male, Red-crested Pochard 2 male 1 female, Common Pochard 13 male 4 female, Common Goldeneye 1 female, Western Marsh Harrier 2 male 1 female, Osprey 1 (shortly present at 3:45 PM, flew off to east), Eurasian Oystercatcher 14, Black-tailed Godwit 1, Common Sandpiper 3, Lesser Black-backed Gull 26, Common Tern 46, Black Tern 5, Barn Swallow 2, Bluethroat 1, Song Thrush 1, Sedge Warbler 3, Common Whitethroat 1, Common Reed Bunting 4.
Meeslouwerplas: Common Cuckoo 1, European Reed Warbler 2.
Leidschendammerhout: White Stork 2, Greylag Goose 4 + 9 pulli, Common Buzzard 1, Whinchat 2 male, Northern Wheatear 4, Common Whitethroat 2, Blackcap 2, Northern Chiffchaff 3, Willow Warbler 4, Common Reed Bunting 3.

April 2012

April 30 - Grey Heron 3, Western Marsh Harrier 1 male, Common Buzzard 2, Pheasant 4, Common Sandpiper 1, Common Tern 10, Common House Martin 1, Sedge Warbler 5, European Reed Warbler 5, Lesser Whitethroat 1, Common Whitethroat 1, Blackcap 5.
Leidschendammerhout: White Stork 1.
April 29 - Great Crested Grebe 12, Mute Swan 26, Greylag Goose 4 + 10 pulli, Common Shelduck 6, Eurasian Wigeon 2 male 1 female, Gadwall 57 male 23 female, Mallard 1 female + 5 pulli, Red-crested Pochard 1 male 1 female, Tufted Duck 82, Common Goldeneye 1 female, Western Marsh Harrier 1 male, Eurasian Coot 2 + 5 pulli, Eurasian Oystercatcher 41, Black-tailed Godwit 4, Common Redshank 1, Lesser Black-backed Gull 18, Common Tern 41, Black Tern 3 (from 4:45 PM), Common Swift 12, Barn Swallow 55, Northern Wheatear 1 female, Song Thrush 1, Common Whitethroat 1.
Meeslouwerplas: Great Crested Grebe 13, Greylag Goose 4 + 12 pulli, Common Sandpiper 1, Common Cuckoo 1, European Reed Warbler 1, Blackcap 3, Northern Chiffchaff 4, Willow Warbler 6.
Leidschendammerhout: Great Crested Grebe 2, White Stork 1, Eurasian Spoonbill 1, Mute Swan 10, Common Teal 2, Common Kestrel 1, Common Redshank 1, Common Tern 2, Barn Swallow 1, Song Thrush 1, Blackcap 5 male 1 female, Northern Chiffchaff 4, Willow Warbler 5, Common Reed Bunting 2.
Passing: Rose-ringed Parakeet 3.
April 26 - Great Crested Grebe 14, Mute Swan 1, Common Shelduck 2, Eurasian Wigeon 1 male, Gadwall 23, Northern Shoveler 27, Red-crested Pochard 2 male 1 female, Common Pochard 15, Tufted Duck 76, Common Goldeneye 1 female, Western Marsh Harrier 1 male 1 female, Eurasian Oystercatcher 25, Black-tailed Godwit 6, Lesser Black-backed Gull 11, Great Black-backed Gull 1 3cy, Common Tern 42, Common Swift 50, Barn Swallow 7.
Leidschendammerhout: White Stork 2, Northern Shoveler 22, Tufted Duck 10, Common Buzzard 2, Common Kestrel 1, Common Wood Pigeon 23, Barn Swallow 4, Blackcap 1, Northern Chiffchaff 3, Willow Warbler 3.
April 24 - Common Grasshopper Warbler 1.
Meeslouwerplas: Savi's Warbler 1.
April 23 - Great Crested Grebe 10, Mute Swan 8, Barnacle Goose 7, Common Shelduck 10, Gadwall 27, Red-crested Pochard 1 male 1 female, Common Pochard 12, Tufted Duck 148, Eurasian Sparrowhawk 1 male, Common Buzzard 1, Common Kestrel 1, Eurasian Oystercatcher 110, Black-tailed Godwit 111, Whimbrel 1, Eurasian Curlew 1, Lesser Black-backed Gull 18, Common Tern 52, Common Swift 10, Barn Swallow 1, Cetti's Warbler 1 (south of hide), Sedge Warbler 6.
Meeslouwerplas: Common Buzzard 1, Savi's Warbler 1, Blackcap 5, Northern Chiffchaff 5, Willow Warbler 4.
Leidschendammerhout: White Stork 2, Eurasian Spoonbill 3, Common Buzzard 1, Common Whitethroat 1, Blackcap 2, Northern Chiffchaff 4, Willow Warbler 3.
April 22 - Eurasian Wigeon 1, Common Goldeneye 1 male, Western Marsh Harrier 1 male, Common Buzzard 2, Black-tailed Godwit 55, Common Tern 40.
Meeslouwerplas: Savi's Warbler 1.
Vlietland: Blackcap 8.
Passing: Blue-headed Wagtail 1.
April 20 - Greylag Goose 4 + 10 pulli, Eurasian Wigeon 34, Mallard 1 female + 4 pulli, Common Goldeneye 2 male 2 female, Western Marsh Harrier 1 male 1 female, Eurasian Oystercatcher 32, Black-tailed Godwit 21, Lesser Black-backed Gull 16, Common Tern 56.
Leidschendammerhout: White Stork 2, Eurasian Spoonbill 1, Great Spotted Woodpecker 2, Song Thrush 1, Blackcap 3, Northern Chiffchaff 4, Willow Warbler 4.
April 19 - Great Crested Grebe 4, Grey Heron 1, Mute Swan 2, Greylag Goose 2 + 7 pulli, Common Shelduck 4, Eurasian Wigeon 13, Common Teal 3, Mallard 8, Northern Shoveler 49, Common Pochard 6, Tufted Duck 136, Common Goldeneye 4 male 6 female, Western Marsh Harrier 1 male 1 female, Common Kestrel 1, Eurasian Oystercatcher 71, Pied Avocet 1, Black-tailed Godwit 37, Common Redshank 1, Black-headed Gull 245, Common Gull 3, Lesser Black-backed Gull 18, European Herring Gull 6, Common Tern 17, Blackcap 1.
Meeslouwerplas: Tufted Duck 43, Sedge Warbler 2, European Reed Warbler 1, Blackcap 1, Willow Warbler 4.
Leidschendammerhout: White Stork 2, Eurasian Spoonbill 1, Blackcap 2, Willow Warbler 5, European Greenfinch 2.
April 17 - Eurasian Sparrowhawk 1 male, Eurasian Oystercatcher 49, Pied Avocet 2, Black-tailed Godwit 122, Barn Swallow 24, Common House Martin 2.
April 16 - Great Crested Grebe 14, Mute Swan 3, Whooper Swan 1, Common Shelduck 4, Eurasian Wigeon 35, Gadwall 28, Northern Pintail 1 male 1 female, Northern Shoveler 66, Red-crested Pochard 1 male 1 female, Common Pochard 15, Tufted Duck 230, Common Goldeneye 3 male 5 female, Western Marsh Harrier 1 male, Eurasian Oystercatcher 46, Black-tailed Godwit 8, Lesser Black-backed Gull 14, Great Black-backed Gull 1, Common Tern 13.
Leidschendammerhout: White Stork 1, Northern Shoveler 20, Common Buzzard 1, Common Kestrel 1, Black-tailed Godwit 3, Song Thrush 1, Blackcap 2, Northern Chiffchaff 3, Willow Warbler 3.
April 15 - White Stork 1, Northern Pintail 1 male 1 female, Northern Shoveler 69, Red-crested Pochard 1 male 1 female, Western Marsh Harrier 1 male 1 female, Black-tailed Godwit 15, Common Tern 5, Barn Swallow 2.
Meeslouwerplas: Western Marsh Harrier 1 male 1 female, Eurasian Sparrowhawk 1 male 2 female, Common Kestrel 1 male 1 female, Cetti's Warbler 1, Common Grasshopper Warbler 1, European Reed Warbler 3, Blackcap 2, Willow Warbler 6, Long-tailed Tit 2.
Passing: Eurasian Spoonbill 2.
April 13 - Great Crested Grebe 12, White Stork 1, Greylag Goose 2 + 5 pulli, Common Shelduck 8, Eurasian Wigeon 270, Gadwall 67, Common Teal 4, Northern Pintail 1 male 1 female, Red-crested Pochard 1 male 1 female, Common Goldeneye 2 male 6 female, Western Marsh Harrier 1 male, Eurasian Oystercatcher 175, Black-tailed Godwit 70, Common Redshank 2, Little Gull 2, Common Tern 7, Bluethroat 1, Sedge Warbler 3, Blackcap 2, Willow Warbler 2.
Meeslouwerplas: Western Marsh Harrier 1 female, Bluethroat 1 male 1 female, Sedge Warbler 3, Blackcap 7.
Leidschendammerhout: White Stork 1, Common Shelduck 2, Common Teal 8, Mallard 2 + 4 pulli, Northern Shoveler 24, Eurasian Sparrowhawk 1, Common Buzzard 2, Common Kestrel 1, Black-tailed Godwit 122, Bluethroat 1, Blackcap 2, Northern Chiffchaff 7, Willow Warbler 7.
Passing: Barn Swallow 1 S.
April 12 - Great Cormorant 2, Grey Heron 1, White Stork 2, Red-crested Pochard 1 male 1 female, Common Goldeneye 2 male 2 female, Western Marsh Harrier 2, Common Buzzard 3, Black-tailed Godwit 30, Common Redshank 3, Common Tern 10, Sedge Warbler 1, Blackcap 1, Northern Chiffchaff 2, Willow Warbler 5, Long-tailed Tit 2, Blue Tit 2, Great Tit 9, Eurasian Jay 1, Common Reed Bunting 3.
Meeslouwerplas: Cetti's Warbler 1.
Leidschendammerhout: Common Teal 2 male 2 female, Common Buzzard 1, Pied Avocet 4, Black-tailed Godwit 30.
Passing: White Stork 1.
April 11 - Great Crested Grebe 4, White Stork 1 (on artificial nest Kniplaan), Eurasian Spoonbill 1, Greylag Goose 2 + 5 pulli, Common Shelduck 8, Common Teal 9, Northern Pintail 1 male 1 female, Tufted Duck 190, Common Goldeneye 5 male 8 female, Western Marsh Harrier 2, Common Buzzard 4, Common Kestrel 1, Eurasian Oystercatcher 120, Pied Avocet 4, Black-tailed Godwit 240, Little Gull 2 adult, Common Tern 13, Bluethroat 1, Common Blackbird 3, Northern Chiffchaff 3, Willow Warbler 5, Great Tit 7, Common Chaffinch 3.
Meeslouwerplas: Cetti's Warbler 1.
Leidschendammerhout: White Stork 3, Eurasian Spoonbill 1, Common Shelduck 2, Common Teal 6, Northern Shoveler 20, Common Kestrel 2, Pied Avocet 1, Black-tailed Godwit 20, Common Redshank 1, Song Thrush 1, Blackcap 1, Northern Chiffchaff 4, Willow Warbler 5.
Passing: White Stork 3, Eurasian Spoonbill 1.
April 10 - Great Cormorant 3, Mute Swan 3, Common Shelduck 4, Common Teal 3, Northern Shoveler 215, Common Goldeneye 3 male 4 female, Eurasian Oystercatcher 142, Pied Avocet 1, Black-tailed Godwit 39, Common Tern 3.
Meeslouwerplas: Common Buzzard 2.
Passing: Western Marsh Harrier 3 ZW (together) 2 N, Eurasian Sparrowhawk 2 SW, Common Buzzard 2 N.
April 6 - Great Crested Grebe 14, Whooper Swan 1, Common Shelduck 10, Common Teal 6, Northern Pintail 1 male 1 female, Northern Shoveler 170, Common Goldeneye 4 male 10 female, Western Marsh Harrier 2 male, Eurasian Oystercatcher 70, Black-tailed Godwit 160, Spotted Redshank 2, Common Redshank 1, Mediterranean Gull 2 (around shell island), Lesser Black-backed Gull 16.
Meeslouwerplas: Little Grebe 1, Great Crested Grebe 10, Greylag Goose 2 + 5 pulli, Red-crested Pochard 1 male 1 female (at Weegeiland), Western Marsh Harrier 1 male, Water Rail 2, Bluethroat 6, Cetti's Warbler 1 (on Weegeiland), Sedge Warbler 2, Blackcap 1, Northern Chiffchaff 6, Willow Warbler 3, Long-tailed Tit 3.
Leidschendammerhout: White Stork 2, Eurasian Spoonbill 1, Common Shelduck 2, Common Teal 8, Northern Shoveler 22, Tufted Duck 10, Common Buzzard 1, Common Kestrel 2, Black-tailed Godwit 68, Common Redshank 2.
April 5 -
Leidschendammerhout: Eurasian Spoonbill 2.
April 3 - Great Crested Grebe 8, Gadwall 7, Northern Pintail 1, Common Goldeneye 3, Common Buzzard 1, Eurasian Oystercatcher 55, Pied Avocet 2, Dunlin 1, Common Redshank 5, Bluethroat 1, Common Blackbird 5, Northern Chiffchaff 2, Willow Warbler 4, Eurasian Jay 3, Common Reed Bunting 5.
Meeslouwerplas: Red-crested Pochard 1 male 1 female.
April 2 - Little Grebe 4, Black-necked Grebe 2, Common Shelduck 8, Garganey 1 male, Greater Scaup 1 male 1 female, Common Goldeneye 6 male 8 female, Western Marsh Harrier 1 female, Common Buzzard 1, Eurasian Oystercatcher 130, Pied Avocet 2, Ruff 1, Black-tailed Godwit 160, Common Redshank 2, Lesser Black-backed Gull 30, Bluethroat 3, Sedge Warbler 4, Common Reed Bunting 4.
Meeslouwerplas: Little Grebe 2, Red-crested Pochard 1 male 1 female, Common Buzzard 2, Great Spotted Woodpecker 3, Bluethroat 2, Song Thrush 1, Cetti's Warbler 1, Sedge Warbler 1, Northern Chiffchaff 8, Willow Warbler 2.
Leidschendammerhout: White Stork 3, Common Shelduck 3, Common Buzzard 2, Pied Avocet 1, Black-tailed Godwit 112, Common Wood Pigeon 26, Common Stonechat 1, Song Thrush 2, Blackcap 2, Northern Chiffchaff 5, Willow Warbler 1.
April 1 - Canada Goose 4, Barnacle Goose 5, Tufted Duck 155 male 68 female, Western Marsh Harrier 1 male, Eurasian Oystercatcher 110, Pied Avocet 6, Ruff 1 female, Black-tailed Godwit 284, Spotted Redshank 1, Common Redshank 2.

March 2012

March 30 - Whooper Swan 1, Common Shelduck 6, Common Teal 6, Garganey 1 male, Western Marsh Harrier 1 male, Eurasian Oystercatcher 130, Black-tailed Godwit 350, Bar-tailed Godwit 1, Eurasian Curlew 1, Common Redshank 3.
Meeslouwerplas: Great Crested Grebe 9, Red-crested Pochard 1 male 1 female, Tufted Duck 34, Common Redshank 7, Cetti's Warbler 1.
Leidschendammerhout: White Stork 3, Canada Goose 14, Northern Pintail 1 male 1 female, Northern Shoveler 12, Common Buzzard 1, Common Kestrel 1, Pheasant 5 male 5 female, Black-tailed Godwit 28, Rose-ringed Parakeet 2, Blackcap 1 male, Northern Chiffchaff 4.
March 28 - Little Grebe 1, Gadwall 110, Common Teal 5, Common Goldeneye 7 male 9 female, Eurasian Oystercatcher 150, Black-tailed Godwit 350, Bluethroat 1, Common Reed Bunting 5.
Meeslouwerplas: Red-crested Pochard 1 male, Common Redshank 2, Cetti's Warbler 1, Northern Chiffchaff 3, Willow Warbler 1.
Leidschendammerhout: White Stork 2, Common Buzzard 1, Pied Avocet 2, Black-tailed Godwit 130, Northern Chiffchaff 3, Willow Warbler 1.
Passing: White Stork 2 SW, Common Buzzard 1, Peregrine Falcon 1.
March 27 - Little Grebe 2, Garganey 1 male, Greater Scaup 1 male, Common Goldeneye 9 male 10 female, Black-tailed Godwit 195 (appr 50% islandica), Spotted Redshank 1, Bluethroat 1, Sedge Warbler 1.
Meeslouwerplas: Black-necked Grebe 1 summer plumage, Red-crested Pochard 2 male 1 female, Common Redshank 9, Cetti's Warbler 1.
Leidschendammerhout: Gadwall 12, Common Teal 6, Northern Pintail 2, Northern Shoveler 4, Eurasian Sparrowhawk 1, Common Buzzard 3, Black-tailed Godwit 9.

Red-crested Pochards on the Meeslouwerplas, 27-3-2012 (Photo © Ben Kamps)

March 26 - Garganey 1 pair, Greater Scaup 1 male 1 female, Common Goldeneye 5 male 7 female, White-headed Duck 1 female, Western Marsh Harrier 1 male, Eurasian Oystercatcher 170, Black-tailed Godwit 400, Spotted Redshank 1, Common Redshank 8.
Meeslouwerplas: Western Marsh Harrier 1 male 1 female, Cetti's Warbler 1.
Leidschendammerhout: White Stork 2, Common Buzzard 3, Common Kestrel 1, Black-tailed Godwit 200, Common Redshank 2, Northern Chiffchaff 3, Great Grey Shrike 1.
Passing: White Stork 1.
March 25 - Little Grebe 1, White-headed Duck 1 female.
Meeslouwerplas: Common Stonechat 1, Cetti's Warbler 1.
March 24 - Eurasian Spoonbill 2, Whooper Swan 1, Greater White-fronted Goose 480, Common Shelduck 8, Gadwall 12, Northern Pintail 2, Northern Shoveler 105, Greater Scaup 1 male 1 female, Common Goldeneye 7 male 13 female, White-headed Duck 1 (still present), Bluethroat 2, Willow Warbler 1.
Meeslouwerplas: Little Grebe 1, Grey Partridge 1, Bluethroat 2, Cetti's Warbler 1, Northern Chiffchaff 5, Long-tailed Tit 2.
Vlietland: Northern Chiffchaff 22.
Passing: Great Cormorant 33 NE, Grey Heron 3, Eurasian Spoonbill 4 NE, Common Redshank 3, Mediterranean Gull 1 (calling out), Eurasian Skylark 1 NE, Meadow Pipit 2 NE, White Wagtail 2 NE, Song Thrush 1.
March 23 - Little Grebe 2, Greater White-fronted Goose 70, Eurasian Wigeon 2500, Northern Pintail 2 male 1 female, Greater Scaup 1 male, Common Goldeneye 7 male 10 female, White-headed Duck 1 female type, Common Buzzard 1, Common Kestrel 1, Eurasian Oystercatcher 120, Black-tailed Godwit 350, Common Redshank 5.
Meeslouwerplas: Little Grebe 2, Great Crested Grebe 20, Common Redshank 21, Bluethroat 1, Cetti's Warbler 1.
Leidschendammerhout: White Stork 2, Common Shelduck 4, Gadwall 35, Common Teal 15, Northern Pintail 1 male 1 female, Black-tailed Godwit 110, Common Redshank 4, Green Sandpiper 1, Song Thrush 4, Northern Chiffchaff 3, European Greenfinch 1, European Goldfinch 3.
Passing: Greater White-fronted Goose 120 NE.

White-headed Duck, 23-3-2012

March 22 - Dunnock 3, Bluethroat 1, Bearded Reedling 2, Common Reed Bunting 5.
Meeslouwerplas: Common Buzzard 1, Great Spotted Woodpecker 1, Winter Wren 5, Dunnock 2, Bluethroat 1, Song Thrush 1, Northern Chiffchaff 5, Willow Warbler 2, Long-tailed Tit 3, Common Chaffinch 2.
Leidschendammerhout: Great Spotted Woodpecker 1, Winter Wren 7, Dunnock 4, Northern Chiffchaff 6, Eurasian Jay 2, Common Chaffinch 5.
Passing: Common Buzzard 1 W.
March 21 - Little Grebe 2, Great Crested Grebe 12, Black-necked Grebe 1 summer plumage, Grey Heron 2, Common Shelduck 13, Eurasian Wigeon 2200, Common Teal 5, Northern Pintail 2 male 1 female, Greater Scaup 1 female, Common Goldeneye 10 male 12 female, Common Buzzard 1, Eurasian Oystercatcher 160, Black-tailed Godwit 300, Eurasian Curlew 1, Common Redshank 6, Lesser Black-backed Gull 20, Northern Chiffchaff 10, Willow Warbler 1, Common Reed Bunting 7.
Meeslouwerplas: Little Grebe 1, Common Redshank 8, Northern Chiffchaff 4, Long-tailed Tit 2, Short-toed Tree Creeper 1.
Leidschendammerhout: White Stork 2 on artificial nest, Common Buzzard 3, Pied Avocet 4, Black-tailed Godwit 106, Northern Chiffchaff 4, Hermine 1 (mouse as prey).
March 20 - Little Grebe 2, Garganey 2, Black-tailed Godwit 320, Eurasian Curlew 1, Common Redshank 10.
Meeslouwerplas: Blackcap 1 male, Northern Chiffchaff 3.
Leidschendammerhout: White Stork 2, Eurasian Spoonbill 1, Black-tailed Godwit 100.
March 19 - Garganey 1 male 1 female, Greater Scaup 1 female, Western Marsh Harrier 1 male shortly hunting, Spotted Redshank 1.
March 18 - Common Buzzard 1, Black-tailed Godwit 250, Common Redshank 4.
Leidschendammerhout: White Stork 2, Northern Goshawk 1 displaying, Black-tailed Godwit 350, Northern Chiffchaff 1.
Vlietland: Little Grebe 2, Greater Scaup 1 male, Common Buzzard 4, Common Kestrel 1, Peregrine Falcon 1, Common Redshank 37, Fieldfare 4, Northern Chiffchaff 2.
March 16 - Little Grebe 4, Black-necked Grebe 1 summer plumage, Common Shelduck 14, Eurasian Wigeon 3700, Northern Pintail 2 male, Common Pochard 20, Common Goldeneye 5 male 8 female, Eurasian Oystercatcher 170, Pied Avocet 17 (1 swimming group), Common Snipe 1, Black-tailed Godwit 400, Eurasian Curlew 190, Common Redshank 3, Lesser Black-backed Gull 14.
Meeslouwerplas: Little Grebe 1, Great Crested Grebe 10, Water Rail 1, Common Redshank 9, Mediterranean Gull 1 (red cr-ring, not read), Cetti's Warbler 1 singing, Northern Chiffchaff 1.
Leidschendammerhout: White Stork 2, Common Shelduck 3, Gadwall 10, Common Teal 12, Northern Pintail 2 male, Common Buzzard 1, Pheasant 2 male 5 female, Black-tailed Godwit 210, Common Wood Pigeon 24, Song Thrush 2.
March 15 - Little Grebe 3, Great Bittern 1, Barnacle Goose 38, Northern Pintail 2 male, Eurasian Oystercatcher 120, Pied Avocet 1, European Golden Plover 1, Black-tailed Godwit 350, Spotted Redshank 1, Common Redshank 3.
Meeslouwerplas: Little Grebe 2, Common Redshank 22, Northern Chiffchaff 3.
Leidschendammerhout: White Stork 2, Black-tailed Godwit 300, Song Thrush 3.
March 14 - Greater White-fronted Goose 2 (1 with broken wing), Common Goldeneye 5 male 2 female, Eurasian Oystercatcher 150, Pied Avocet 2, Black-tailed Godwit 300, Common Redshank 4, Common Reed Bunting 2.
Meeslouwerplas: Common Redshank 5.
Leidschendammerhout: White Stork 2, Common Shelduck 2, Common Teal 12, Common Buzzard 1, Black-tailed Godwit 128, Common Redshank 4, Common Wood Pigeon 40, Redwing 20 (choir singing).
Passing: Great Cormorant 24 NE, Dunlin 1 NE.
March 12 - Greater Scaup 1 female.
Meeslouwerplas: Northern Goshawk 1 female.
March 11 - Little Grebe 1, Great Bittern 1 flying past hide, Northern Pintail 2, Greater Scaup 1 female, Common Buzzard 11, Common Kestrel 2, Common Redshank 4, Common Reed Bunting 1.
Leidschendammerhout: White Stork 2, Common Shelduck 2, Common Teal 10, Black-tailed Godwit 120, Common Reed Bunting 1.
Vlietland: Little Grebe 6, Greater Scaup 1 male, Eurasian Sparrowhawk 1, Common Redshank 8, Common Reed Bunting 1.
March 10 - Little Grebe 1, Black-necked Grebe 1, Great Egret 1, Common Shelduck 10, Common Teal 8, Greater Scaup 1 female, Common Goldeneye 7 male 10 female, Eurasian Oystercatcher 250, Pied Avocet 4, Black-tailed Godwit 450, Common Redshank 9, Lesser Black-backed Gull 15.
Meeslouwerplas: Little Grebe 2, Red-necked Grebe 1, Common Buzzard 2, Common Redshank 4, Song Thrush 1.
Leidschendammerhout: Black-tailed Godwit 90.

Red-necked Grebe, 10-3-2012

March 9 - Little Grebe 1, Eurasian Spoonbill 1, Common Buzzard 1, Pied Avocet 1, Black-tailed Godwit >350, Eurasian Curlew 1, Common Redshank 5.
Meeslouwerplas: Eurasian Sparrowhawk 1, Common Buzzard 2.
Passing: White Stork 1 SW.
March 8 - Little Grebe 1, Great Egret 3, Eurasian Wigeon 2400, Northern Pintail 1, Common Goldeneye 6 male 10 female, Common Buzzard 2, Common Kestrel 1, Eurasian Oystercatcher 160, Pied Avocet 2, Black-tailed Godwit 400, Common Redshank 5, Great Spotted Woodpecker 1, Common Reed Bunting 1.
Meeslouwerplas: Little Grebe 2, Great Crested Grebe 10, Great Cormorant 5, Common Buzzard 2, Common Redshank 4, Long-tailed Tit 2.
Leidschendammerhout: Little Grebe 1, Great Egret 2, White Stork 2, Common Shelduck 2, Common Teal 8, Northern Pintail 3, Tufted Duck 8, Common Buzzard 5, Black-tailed Godwit 55, Song Thrush 2.
March 5 - Little Grebe 1, Black-necked Grebe 1, Great Egret 1, Eurasian Wigeon 3000, Common Teal 16, Northern Pintail 3 male 2 female, Northern Shoveler 32, Common Pochard 35, Tufted Duck 130, Greater Scaup 1 female, Common Goldeneye 5 male 8 female, Eurasian Oystercatcher 180, Black-tailed Godwit 270 (7 cr-ringed), Common Redshank 7, Lesser Black-backed Gull 14.
Leidschendammerhout: Great Egret 1, White Stork 2, Common Shelduck 3, Gadwall 12, Common Teal 10, Northern Pintail 4 male 2 female, Common Pochard 3, Tufted Duck 8, Common Buzzard 2, Common Kestrel 1, Black-tailed Godwit 38, Black-headed Gull 1200.
March 4 - Little Grebe 1, Eurasian Spoonbill 1, Greater Scaup 1 female, Common Goldeneye 4 male 4 female, Black-tailed Godwit 300, Common Redshank 1 (cr-ringed), Common Reed Bunting 1.
Meeslouwerplas: Little Grebe 3, Great Crested Grebe 29, Horned Grebe 1, Great Egret 1, Northern Chiffchaff 2, Eurasian Bullfinch 1 male.
Leidschendammerhout: Gadwall 10, Northern Pintail 1 male, Black-tailed Godwit 50.
March 2 - Little Grebe 1, Black-necked Grebe 1, Great Egret 1, Barnacle Goose 16, Common Teal 20, Common Goldeneye 10 male 9 female, Smew 1 male 1 female, Eurasian Oystercatcher 170, Pied Avocet 2, Black-tailed Godwit 250, Eurasian Curlew 22, Mediterranean Gull 1 adult summer plumage, Lesser Black-backed Gull 14, Great Black-backed Gull 1.
Leidschendammerhout: Great Egret 1, White Stork 2, Eurasian Spoonbill 1, Canada Goose 10, Common Teal 11, Northern Pintail 2 male 2 female, Common Buzzard 3, Common Kestrel 1, Pied Avocet 2, Black-tailed Godwit 1, Song Thrush 1 singing.
March 1 - Little Grebe 1, Black-necked Grebe 1, Great Egret 1, Common Shelduck 8, Common Teal 13, Northern Pintail 3 male 2 female, Common Goldeneye 7 male 8 female, Eurasian Oystercatcher 185, Black-tailed Godwit 235 (>25% islandica), Mediterranean Gull 1 adult summer plumage (4:30 PM).
Meeslouwerplas: Water Rail 1.
Passing: Eurasian Curlew 16 E.

Februari 2012

February 29 - Little Grebe 1, Great Egret 1, Common Shelduck 9, Eurasian Wigeon 3200, Common Teal 10, Northern Pintail 2 male 2 female, Common Pochard 33, Greater Scaup 1, Common Goldeneye 6 male 8 female, Eurasian Oystercatcher 190, Black-tailed Godwit 180, Stock Dove 5.
Leidschendammerhout: White Stork 3, Eurasian Spoonbill 1, Greylag Goose 70, Canada Goose 9, Egyptian Goose 6, Gadwall 16, Common Teal 14, Northern Pintail 4 male 2 female, Tufted Duck 12, Common Buzzard 2.
Vlietland: Great Egret 1, Northern Goshawk 1 male, Common Buzzard 1, Peregrine Falcon 1 juvenile, Eurasian Oystercatcher 150, Black-headed Gull 1 leucistic.
February 28 - Great Egret 1, Eurasian Spoonbill 1, Eurasian Wigeon 850, Eurasian Oystercatcher 68, Black-tailed Godwit 111, Common Reed Bunting 2.
Meeslouwerplas: Great Bittern 1, Great Egret 5.
February 27 - Black-necked Grebe 1, Great Bittern 2, Common Shelduck 6, Common Teal 11, Northern Pintail 2 male 1 female, Northern Shoveler 29 male 8 female, Common Pochard 32, Common Goldeneye 11 male 10 female, Eurasian Sparrowhawk 1, Eurasian Oystercatcher 238, Pied Avocet 1, Black-tailed Godwit 125, Mediterranean Gull 2 adult, Lesser Black-backed Gull 9.
Leidschendammerhout: Gadwall 13, Common Teal 14, Northern Pintail 4 male 1 female.
February 25 - Great Bittern 1, Common Teal 20, Northern Pintail 3 male 3 female, Common Goldeneye 4 male 6 female, Eurasian Oystercatcher 150, Black-tailed Godwit 27, Eurasian Curlew 220, Mediterranean Gull 2, Black-headed Gull 20000, Common Gull 1500, European Herring Gull 300.
Leidschendammerhout: White Stork 2 (on artificial nest), Common Buzzard 2, Common Kestrel 1 female.
Vlietland: Little Grebe 6, Great Egret 9 (roost), Greater Scaup 1 male, European Herring Gull 3000.

Apprimately 20 Black-headed Gulls had oil stains, 25-2-2012

February 24 - Great Egret 2, Common Teal 13, Common Pochard 26, Common Goldeneye 11 male 14 female, Common Buzzard 2, Common Kestrel 1, Eurasian Oystercatcher 140, Pied Avocet 1, Black-tailed Godwit 23, Black-headed Gull 12000, Common Gull 1500, Lesser Black-backed Gull 20, European Herring Gull 300, Great Black-backed Gull 1.
Meeslouwerplas: Black-headed Gull 3000.
Leidschendammerhout: Great Egret 1, Gadwall 10, Common Teal 14, Northern Pintail 3 male 2 female, Tufted Duck 14, Common Buzzard 2, Common Kestrel 1.
February 22 - Great Bittern 1, Great Egret 1, Eurasian Wigeon 2600, Common Teal 8, Tufted Duck 273, Common Goldeneye 6 male 5 female, Smew 1 female, Eurasian Sparrowhawk 1, Common Buzzard 1, Common Kestrel 1, Eurasian Oystercatcher 96, Black-tailed Godwit 13, Mediterranean Gull 2 adult, Lesser Black-backed Gull 20, Yellow-legged Gull 1 adult.
Meeslouwerplas: Common Buzzard 1, Long-tailed Tit 3.
Leidschendammerhout: White Stork 2, Canada Goose 7, Common Shelduck 3, Gadwall 24, Common Teal 15, Northern Pintail 3 male 2 female, Tufted Duck 14, Common Buzzard 4, Common Kestrel 1.
February 20 - Great Bittern 2, Great Egret 1, Eurasian Wigeon 2400, Common Teal 19, Common Pochard 22, Common Goldeneye 10 male 8 female, Common Buzzard 1, Common Kestrel 1, Water Rail 1, Eurasian Oystercatcher 54, Black-tailed Godwit 1, Lesser Black-backed Gull 3, Caspian Gull 1 1st winter (ringed in colony).
Meeslouwerplas: Little Grebe 2, Great Crested Grebe 10, Eurasian Wigeon 900, Common Teal 4.
Leidschendammerhout: Great Egret 3, White Stork 2, Canada Goose 6, Egyptian Goose 4, Gadwall 10, Common Teal 11, Northern Pintail 2 male, Tufted Duck 8, Common Buzzard 1, Common Kestrel 1, Grey Wagtail 1, Song Thrush 1.

February 19 -

Civilization in the Netherlands: Greater White-fronted Goose has survived a harsh winter and is then shot and left to die. This bird was stumbling over his own broken left wing., 19-2-2012

February 18 - Eurasian Wigeon 300, Mallard 40, Northern Shoveler 21, Common Pochard 7, Tufted Duck 80, Greater Scaup 1 male, Common Goldeneye 9 male 13 female, Smew 1 female, Common Buzzard 1, Eurasian Coot 35, Eurasian Oystercatcher 60 (Hamble Point has arrived again), Northern Lapwing 50, Black-headed Gull 10000, Common Gull 1200, Lesser Black-backed Gull 4, European Herring Gull 100.
Vlietland: Little Grebe 5, Great Crested Grebe 9, Black-necked Grebe 1, Great Cormorant 23, Great Egret 6, Eurasian Wigeon 8700, Gadwall 241, Common Teal 15, Mallard 152, Common Pochard 36, Tufted Duck 442, Greater Scaup 1 male 1 female, Velvet Scoter 1 (north side), Common Goldeneye 1 female, Smew 1 female, Goosander 1 male 1 female, Peregrine Falcon 1, Common Moorhen 2, Eurasian Coot 232, Eurasian Oystercatcher 1, Black-headed Gull 1000.
February 16 - Great Bittern 1, Common Shelduck 12, Common Teal 20, Northern Pintail 19 male 8 female, Common Goldeneye 2 male 4 female, Red-breasted Merganser 1 male 1 female, Common Buzzard 2, Common Kestrel 1, Common Magpie 11, Carrion Crow 26 (on the ice). still covered with ice for 90%.
Meeslouwerplas: Little Grebe 7, Black-necked Grebe 1, Great Egret 1, Eurasian Wigeon 9000, Common Teal 37, Common Pochard 25, Tufted Duck 165, Greater Scaup 1 male, Common Goldeneye 6 male 5 female, Goosander 1 female, Eurasian Coot 240, Rose-ringed Parakeet 1, Great Spotted Woodpecker 2.
Leidschendammerhout: Great Egret 4, White Stork 3, Egyptian Goose 6, Common Buzzard 1, Green Sandpiper 1, Redwing 6.
Vlietland: Little Grebe 4, Eurasian Wigeon 4000, Tufted Duck 60, Common Goldeneye 2 male 2 female, Eurasian Coot 70.
Passing: Greater White-fronted Goose 105, Barnacle Goose 80 N.
February 12 -
Meeslouwerplas: Little Grebe 5, Great Egret 49 (roost), Mute Swan 16, Bewick's Swan 27, Greater White-fronted Goose 3500 (roost), Greylag Goose 1000, Barnacle Goose 110, Egyptian Goose 190, Greater Scaup 5, Smew 2 female, Common Buzzard 2, Water Rail 1, Water Pipit 1. Meeslouwerplas frozen over for 50%.
Leidschendammerhout: Great Egret 3, Grey Heron 5 (1 with Common Teal as prey), Mute Swan 12, Gadwall 2, Common Teal 32, Mallard 10, Northern Pintail 1, Smew 5 female, Common Buzzard 2, Jack Snipe 1, Eurasian Woodcock 1, Green Sandpiper 1, Great Spotted Woodpecker 1 female, Water Pipit 2, Carrion Crow 110 (roost).
February 10 - Redwing 1. Vogelplas Starrevaart is frozen for 100%.
Meeslouwerplas: Little Grebe 7, Great Cormorant 18, Great Bittern 2, Great Egret 47, Grey Heron 14, Mute Swan 7, Greater White-fronted Goose 250, Barnacle Goose 37, Eurasian Wigeon >10000, Northern Pintail 5, Greater Scaup 1 male 1 female, Common Goldeneye 3 male 2 female, Smew 3 male 4 female, Goosander 1 male 3 female, Hen Harrier 1 female, Common Buzzard 2, Eurasian Woodcock 1.
Leidschendammerhout: Greater White-fronted Goose 65, Greylag Goose 160, Common Teal 11, Hen Harrier 1 female (possibly same as Meeslouwerplas), Common Buzzard 3, Common Kestrel 1, Common Snipe 1, Green Sandpiper 1, Common Raven 1 at 5:00 PM, almost certain this species.

February 8 - Common Kestrel 1.
Meeslouwerplas: Little Grebe 3, Great Cormorant 72, Great Bittern 1, Great Egret 54, Grey Heron 12, Egyptian Goose 40, Eurasian Wigeon 12500, Smew 1 female, Peregrine Falcon 1 juvenile.
Rietpolder: Little Grebe 6, Bewick's Swan 7, Common Goldeneye 3 male 1 female, Goosander 3 male 2 female, Jack Snipe 1.
Spekpolder: Little Grebe 2, Mute Swan 26, Eurasian Wigeon 1800, Common Goldeneye 1 female.
Leidschendammerhout: Great Egret 2, Grey Heron 11, Mute Swan 16, Greater White-fronted Goose 300 (small groups came to drink), Greylag Goose 96, Egyptian Goose 14, Common Teal 33, Mallard 4, Common Buzzard 3 (1 caught a Common Moorhen, but got attacked by 6 Carrion Crows and had to let go of the prey), Common Kestrel 2, Common Moorhen 4, Jack Snipe 1, Common Snipe 4, Green Sandpiper 2, Common Kingfisher 1, Long-tailed Tit 6, Carrion Crow 10.
Passing: Goosander 13 SW, Water Pipit 2.
February 6 - Starrevaart frozen over for 99%.
Meeslouwerplas: Great Egret 76, Bewick's Swan 104, Smew 1, Goosander 1.
Leidschendammerhout: Common Teal 40, Eurasian Sparrowhawk 1, Jack Snipe 6, Common Snipe 25, Eurasian Woodcock 2, Water Pipit 1, Redwing 2, European Goldfinch 5.
February 4 - Mute Swan 3, Bewick's Swan 28, Common Shelduck 20, Eurasian Wigeon 1900, Northern Shoveler 1, Eurasian Curlew 15, Common Gull 20.
Vlietland: Little Grebe 14, Great Crested Grebe 25, Great Cormorant 15, Great Egret 54, Grey Heron 8, Mute Swan 10, Bewick's Swan 167, Greater White-fronted Goose 440, Greylag Goose 140, Canada Goose 10, Common Shelduck 20, Eurasian Wigeon 18500, Gadwall 340, Mallard 1270, Northern Pintail 12, Northern Shoveler 12, Red-crested Pochard 2 male, Common Pochard 70, Tufted Duck 268, Common Goldeneye 3 male 5 female, Smew 2 male 2 female, Goosander 1 female, Eurasian Sparrowhawk 1, Common Buzzard 5, Water Rail 1, Common Moorhen 5, Eurasian Coot 700, Common Snipe 3, Eurasian Woodcock 1.
Passing: Great Cormorant 50 SW, Great Egret 19 SW, Barnacle Goose 475 SW, Eurasian Skylark 10 SW.
February 3 - Bewick's Swan 110.

February 2 - Bewick's Swan 119, Common Shelduck 65, Common Goldeneye 2 male 1 female, Common Buzzard 1, Peregrine Falcon 1 female (attacking a female Common Pochard but missed), Eurasian Curlew 730.
Meeslouwerplas: Great Cormorant 78, Great Egret 69 (in daytime), Water Rail 1.
February 1 - Common Shelduck 63, Common Teal 11, Northern Pintail 14, Common Goldeneye 3 male 6 female, Smew 4 male 1 female, Goosander 1 female, Common Kestrel 1, Eurasian Curlew 93.
Meeslouwerplas: Little Grebe 1, Great Egret 42 (roost), Grey Heron 9.
Leidschendammerhout: Mute Swan 14, Greylag Goose 140, Canada Goose 12, Common Buzzard 2, Common Kestrel 1, Fieldfare 8, Redwing 20, Long-tailed Tit 2, European Goldfinch 1.

Januari 2012

January 31 - Great Bittern 1, Hen Harrier 1 female type.
Vlietland: Great Egret 38 (roost Weegeiland).
Passing: Great Egret 5.
January 30 - Little Grebe 1, Black-necked Grebe 1, Great Cormorant 8, Great Egret 2, Greater White-fronted Goose 6, Canada Goose 26, Common Shelduck 11, Eurasian Wigeon 2600, Common Teal 12, Common Goldeneye 2 male 6 female, Common Kestrel 1, Eurasian Oystercatcher 18, Pied Avocet 1, Black-tailed Godwit 1, Eurasian Curlew 280, Lesser Black-backed Gull 1.
Meeslouwerplas: Great Cormorant 16, Common Teal 17, Tufted Duck 48, Common Goldeneye 1 female, Water Rail 2, Spotted Redshank 3, Common Kingfisher 1.
Leidschendammerhout: Great Egret 1, White Stork 2, Mute Swan 13, Greylag Goose 80, Canada Goose 53, Eurasian Sparrowhawk 1, Common Buzzard 1.
January 28 - Great Egret 2, Black-tailed Godwit 2, Eurasian Curlew 300.
Leidschendammerhout: White Stork 3 (2 on nest).
January 27 - Great Egret 3, Common Buzzard 3, Eurasian Green Woodpecker 1, European Robin 3.
January 25 - Black-necked Grebe 1, Great Cormorant 6, Great Bittern 1 (SE side), Great Egret 2, Common Shelduck 6, Eurasian Wigeon 3200, Common Teal 36, Tufted Duck 148, Common Goldeneye 1 male 5 female, Common Buzzard 1, Common Kestrel 1, Eurasian Oystercatcher 11, European Golden Plover 3, Ruff 2, Eurasian Curlew 270, Caspian Gull 1 1st winter (ringed in colony).
Leidschendammerhout: Great Egret 1, White Stork 2, Greylag Goose 110, Barnacle Goose 1, Egyptian Goose 4, Common Teal 26, Northern Pintail 3 male 3 female, Common Buzzard 4, Common Kestrel 1, Rose-ringed Parakeet 1, Short-toed Tree Creeper 1.
January 23 - Little Grebe 1, Great Cormorant 5, Great Egret 12 (roost), Greylag Goose 260, Canada Goose 24, Egyptian Goose 8, Common Shelduck 6, Common Teal 22, Common Goldeneye 3 male 6 female, Smew 1 male 1 female, Common Kestrel 1, Eurasian Oystercatcher 13, Eurasian Curlew 16.
Meeslouwerplas: Great Cormorant 16, Spotted Redshank 3.
Leidschendammerhout: White Stork 2, Mute Swan 13, Greylag Goose 65, Common Teal 12, Common Buzzard 1.
Passing: Greater White-fronted Goose 75 N.
January 17 - Black-necked Grebe 1, Goosander 1 female.
January 16 - Little Grebe 1, Black-necked Grebe 1, Great Cormorant 15, Great Bittern 1, Great Egret 3, Mute Swan 2, Bewick's Swan 5, Common Shelduck 43, Common Teal 15, Tufted Duck 235, Common Goldeneye 3 male 3 female 2 female type, Common Buzzard 1, Common Kestrel 1, Eurasian Oystercatcher 9, Eurasian Curlew 450, Cetti's Warbler 1.
Meeslouwerplas: Black-necked Grebe 2, Great Cormorant 16, Spotted Redshank 3, European Goldfinch 2.
Leidschendammerhout: Mute Swan 12, Greater White-fronted Goose 800, Greylag Goose 200, Gadwall 14, Common Teal 40, Northern Pintail 2 male, Smew 1 male, Common Snipe 1, Water Pipit 5.
Passing: Pink-footed Goose 5 NW, Peregrine Falcon 1 N.
January 15 - Black-necked Grebe 1, Great Egret 3, Grey Heron 4, Bewick's Swan 2, Whooper Swan 1, Greater White-fronted Goose 3100, Greylag Goose 600, Barnacle Goose 120, Egyptian Goose 8, Common Shelduck 14, Common Teal 43, Common Goldeneye 1 male 4 female, Common Kestrel 1, Water Rail 2, Common Snipe 2, Eurasian Woodcock 1, Water Pipit 1, Cetti's Warbler 1 (singing), Long-tailed Tit 2, Common Reed Bunting 4.
Leidschendammerhout: Greylag Goose 110, Gadwall 6, Common Teal 20, Northern Pintail 4 male 1 female, Tufted Duck 2, Smew 1 male, Eurasian Sparrowhawk 1, Firecrest 1.
January 14 - Little Grebe 1, Great Crested Grebe 4, Great Egret 11 (roost), Mute Swan 3, Greylag Goose 219, Common Shelduck 15, Eurasian Wigeon 4700, Gadwall 27, Common Teal 27, Mallard 101, Northern Pintail 7, Northern Shoveler 14, Common Pochard 37, Tufted Duck 197, Common Goldeneye 2 male 4 female, Common Buzzard 1, Water Rail 1, Eurasian Coot 15, Eurasian Oystercatcher 13, Pied Avocet 1, Northern Lapwing 200, Eurasian Curlew 480, Black-headed Gull 6000, Common Gull 1500, European Herring Gull 200, Great Spotted Woodpecker 1, Water Pipit 3.
Vlietland: Little Grebe 8, Great Crested Grebe 16, Great Cormorant 28, Grey Heron 1, Mute Swan 4, Greylag Goose 17, Canada Goose 60, Egyptian Goose 1, Gadwall 20, Common Teal 8, Mallard 204, Tufted Duck 5, Common Goldeneye 1, Common Buzzard 1, Common Moorhen 8, Eurasian Coot 366, Eurasian Oystercatcher 10, Spotted Redshank 3, Black-headed Gull 50, Common Gull 6, European Herring Gull 2, Great Black-backed Gull 1, Common Wood Pigeon 31, Eurasian Collared Dove 1, Eurasian Green Woodpecker 1 male 1 female, Winter Wren 6, Dunnock 2, European Robin 2, Common Blackbird 14, Redwing 20, Long-tailed Tit 17, Blue Tit 6, Great Tit 26, Short-toed Tree Creeper 1, Eurasian Jay 2, Common Magpie 13, Western Jackdaw 25, Carrion Crow 10, Common Chaffinch 25, European Greenfinch 1, European Goldfinch 12.
Passing: Common Starling 4500 SW (roost flight).

Shell-island loaded with Eurasian Curlews, 14-1-2012

January 13 - Great Cormorant 5, Great Egret 1, Mute Swan 4, Common Teal 12, Common Goldeneye 1 male 2 female 5 female type, Eurasian Sparrowhawk 1, Common Buzzard 2, Common Kestrel 1, Eurasian Oystercatcher 19, Eurasian Curlew 120.
Meeslouwerplas: Great Cormorant 22, Spotted Redshank 3.
Leidschendammerhout: White Stork 2, Greylag Goose 40, Common Teal 16, Northern Pintail 1 male, Common Buzzard 3.
January 9 - Black-necked Grebe 1, Great Cormorant 14, Canada Goose 9, Common Teal 25, Common Pochard 33, Common Goldeneye 1 male 3 female 3 female type, Common Kestrel 1, Peregrine Falcon 1 (2 PM high above the lake), Eurasian Oystercatcher 8, Northern Lapwing 600, Eurasian Curlew 320, Lesser Black-backed Gull 1, Great Black-backed Gull 1.
Meeslouwerplas: Great Cormorant 23, Spotted Redshank 3.
Leidschendammerhout: Little Grebe 1, White Stork 1, Mute Swan 13, Common Teal 24, Northern Pintail 1 male, Common Buzzard 1.
January 8 -
Meeslouwerplas: Eurasian Woodcock 1.
January 6 - Common Shelduck 28, Common Goldeneye 1 male 3 female 3 female type, Common Buzzard 2 (one plucking a Black-headed Gull on the shell island), Peregrine Falcon 1 hunting at 4:45 PM, Eurasian Oystercatcher 8, Eurasian Curlew 300.
Meeslouwerplas: Great Cormorant 15, Spotted Redshank 3.
Leidschendammerhout: Great Egret 1, Greater White-fronted Goose 30, Greylag Goose 110, Gadwall 16, Common Teal 28, Northern Pintail 2 male, Common Buzzard 3, Rose-ringed Parakeet 1, Great Spotted Woodpecker 1, Grey Wagtail 1, Common Starling 400 (1 fouraging group).

January 4 - Greater Scaup 1 female.
January 3 - Greater Scaup 2 female (NW-side).
January 2 - Great Egret 1, Bewick's Swan 7, Tufted Duck 185, Common Goldeneye 3 male 1 female 3 female type, Common Buzzard 1, Common Kestrel 1, Peregrine Falcon 1 hunting, Eurasian Oystercatcher 4, Eurasian Curlew 250, Lesser Black-backed Gull 2, Caspian Gull 1 1st winter (ringed in colony), Great Black-backed Gull 1 3cy.
Meeslouwerplas: Little Grebe 1, Great Crested Grebe 8, Great Cormorant 12, Gadwall 28, Spotted Redshank 2.
Leidschendammerhout: Little Grebe 1, White Stork 2, Mute Swan 13, Greylag Goose 65, Canada Goose 11, Egyptian Goose 2, Gadwall 18, Common Teal 34, Mallard 23, Northern Pintail 4 male 2 female, Common Buzzard 1.
Passing: Northern Goshawk 1 juvenile W.

List of observers

The following people have contributed to the overview of 2012 by submitting their observations (and thank you for this!):
Jan bais, Jan Bais, Ab van de Burg, Ab van der Burg, Ab van der Burgt, Kees Dijkstra, Ed van Estrik, Rob Floor, Marianne Geboers, Gerjon Gelling, M. Groenenveld, Adri de Groot, Adr de Groot, Chris van Heerden, Hans Hersbach, Gerard de Hoog, Tineke Hooijmans, Brian Hunter, Arris Jan van Ekris, Ben Kamps, Jouke Karper, Hans Keijser, Theüs van Kleffens, Renée de Kleijn, Derk Kösters, Danny Laponder, Harald Lassner, André Leegwater, Suze Mechelse, Herman van der Meer, Freek Meijer, Sjaak Noorman, Marianne Olthof, Martin Peeters, Martin Peters, George Pieterse, Simon Post, August van Rijn, Sjon van Santen, Erna Scheelings, Sjaak Schilperoort, Rita Scholing, Gerard Steehouwer, Rob Tolk, Willem Vergoosen, Rinse van de Vliet, Max van Waasdijk, Caroline Walta, Robin Walters, Brigitte Wieles, Marc de Witte, Gerard Zeele, Henk Zevenbergen.

Some sightings were obtained through waarneming.nl