The site was identified as important in 2009 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Species |
Current IUCN Red List Category |
Season |
Year(s) |
Population estimate at site |
IBA criteria met |
Mute Swan Cygnus olor |
LC |
passage |
1996-1997 |
4,000-6,000 individuals |
A4i, B1i |
Whooper Swan Cygnus cygnus |
LC |
passage |
1996-1997 |
500-1,500 individuals |
A4i, B1i |
Red-breasted Goose Branta ruficollis |
VU |
passage |
1997-2007 |
300-500 individuals |
A1, A4i, B1i |
Greylag Goose Anser anser |
LC |
passage |
1996-1997 |
10,000-20,000 individuals |
A4i, B1i |
Greater White-fronted Goose Anser albifrons |
LC |
passage |
2006-2007 |
30,000-40,000 individuals |
A4i, B1i |
Lesser White-fronted Goose Anser erythropus |
VU |
passage |
1996-2007 |
20-50 individuals |
A1 |
Ruddy Shelduck Tadorna ferruginea |
LC |
passage |
2006-2007 |
200-300 individuals |
B1i |
Red-crested Pochard Netta rufina |
LC |
passage |
1996-1997 |
6,000-8,000 individuals |
A4i, B1i |
Common Pochard Aythya ferina |
VU |
breeding |
1996-2007 |
30,000-100,000 individuals |
A4i, B1i |
Common Pochard Aythya ferina |
VU |
breeding |
2006-2007 |
2,000-2,500 breeding pairs |
B2 |
Common Pochard Aythya ferina |
VU |
passage |
2006-2007 |
10,000-20,000 individuals |
A4i, B1i |
Ferruginous Duck Aythya nyroca |
NT |
passage |
1996-1997 |
100-150 individuals |
A1 |
Ferruginous Duck Aythya nyroca |
NT |
breeding |
1996-2007 |
10-30 breeding pairs |
A1 |
Garganey Spatula querquedula |
LC |
passage |
1996-1997 |
20,000-30,000 individuals |
A4i, B1i |
Mallard Anas platyrhynchos |
LC |
passage |
1996-1997 |
30,000-40,000 individuals |
B1i |
Red-necked Grebe Podiceps grisegena |
LC |
breeding |
1996-2007 |
500-1,500 breeding pairs |
A4i, B1i |
Red-necked Grebe Podiceps grisegena |
LC |
passage |
2006-2007 |
5,000-10,000 individuals |
A4i, B1i |
Great Crested Grebe Podiceps cristatus |
LC |
breeding |
1996-1997 |
2,000-4,000 breeding pairs |
A4i, B1i |
Great Crested Grebe Podiceps cristatus |
LC |
passage |
2006-2007 |
10,000-15,000 individuals |
A4i, B1i |
Black-necked Grebe Podiceps nigricollis |
LC |
breeding |
1996-2007 |
300-800 breeding pairs |
A4i, B1i |
Black-necked Grebe Podiceps nigricollis |
LC |
passage |
2006-2007 |
5,000-8,000 individuals |
A4i, B1i |
Corncrake Crex crex |
LC |
breeding |
2006-2007 |
600 breeding pairs |
A1 |
Corncrake Crex crex |
LC |
passage |
2006-2007 |
1,500-2,000 individuals |
A1 |
Common Coot Fulica atra |
LC |
breeding |
1997-2007 |
8,000-12,000 breeding pairs |
B1i |
Common Coot Fulica atra |
LC |
passage |
2006-2007 |
100,000-150,000 individuals |
A4i, B1i |
Glossy Ibis Plegadis falcinellus |
LC |
breeding |
2006-2007 |
50-70 breeding pairs |
B2 |
Black-crowned Night-heron Nycticorax nycticorax |
LC |
breeding |
2006-2007 |
200-500 breeding pairs |
B1i, B2 |
Black-crowned Night-heron Nycticorax nycticorax |
LC |
passage |
2006-2007 |
1,000-3,000 individuals |
A4i, B1i |
Squacco Heron Ardeola ralloides |
LC |
breeding |
2006-2007 |
30-50 breeding pairs |
B2 |
Grey Heron Ardea cinerea |
LC |
passage |
1996-1997 |
6,000-8,000 individuals |
A4i, B1i |
Purple Heron Ardea purpurea |
LC |
passage |
1996-1997 |
5,000-8,000 individuals |
A4i, B1i |
Purple Heron Ardea purpurea |
LC |
breeding |
1996-2007 |
300-500 breeding pairs |
B2 |
Great White Egret Ardea alba |
LC |
breeding |
2006-2007 |
100-200 breeding pairs |
A4i, B1i |
Great White Egret Ardea alba |
LC |
passage |
1996-2007 |
500-1,500 individuals |
A4i, B1i |
Little Egret Egretta garzetta |
LC |
passage |
1996-2007 |
1,000-8,000 individuals |
A4i, B1i |
Little Egret Egretta garzetta |
LC |
breeding |
2006-2007 |
150-300 breeding pairs |
B1i |
Great Cormorant Phalacrocorax carbo |
LC |
breeding |
1996-2007 |
1,000-2,730 breeding pairs |
B1i |
Great Cormorant Phalacrocorax carbo |
LC |
passage |
1996-2007 |
5,000-10,000 individuals |
B1i |
Eurasian Oystercatcher Haematopus ostralegus |
NT |
passage |
1996-2007 |
1,000-5,000 individuals |
B1i |
Black-winged Stilt Himantopus himantopus |
LC |
passage |
1996-1997 |
1,500-3,000 individuals |
A4i, B1i |
Black-tailed Godwit Limosa limosa |
NT |
passage |
2006-2007 |
1,000-2,000 individuals |
A1, B1i |
Great Snipe Gallinago media |
NT |
passage |
1996-1997 |
1,000-2,000 individuals |
A1 |
Black-winged Pratincole Glareola nordmanni |
NT |
passage |
1996-2007 |
100-1,000 individuals |
A1 |
Slender-billed Gull Larus genei |
LC |
passage |
1996-1997 |
3,500-4,000 individuals |
A4i, B1i |
Pallas's Gull Larus ichthyaetus |
LC |
passage |
1996-1997 |
5,000-10,000 individuals |
A4i, B1i |
Caspian Gull Larus cachinnans |
LC |
passage |
1996-2007 |
200,000-300,000 individuals |
A4i, B1i |
Little Tern Sternula albifrons |
LC |
passage |
1996-1997 |
10,000-20,000 individuals |
A4i, B1i |
Caspian Tern Hydroprogne caspia |
LC |
passage |
1996-2007 |
50-200 individuals |
B1i |
Whiskered Tern Chlidonias hybrida |
LC |
passage |
1996-1997 |
80,000-100,000 individuals |
A4i, B1i |
Whiskered Tern Chlidonias hybrida |
LC |
breeding |
1996-2007 |
100-200 breeding pairs |
B2 |
Black Tern Chlidonias niger |
LC |
passage |
1996-2007 |
60,000-120,000 individuals |
A4i, B1i |
Greater Spotted Eagle Clanga clanga |
VU |
passage |
2006-2007 |
20-50 individuals |
A1 |
White-tailed Sea-eagle Haliaeetus albicilla |
LC |
breeding |
1996-2007 |
10-24 breeding pairs |
B2 |
European Roller Coracias garrulus |
LC |
breeding |
2006-2007 |
10-20 breeding pairs |
A1 |
European Roller Coracias garrulus |
LC |
passage |
2006-2007 |
min 100 individuals |
A1 |
Common Kingfisher Alcedo atthis |
LC |
breeding |
2006-2007 |
100-200 breeding pairs |
B2 |
Red-footed Falcon Falco vespertinus |
VU |
passage |
1996-2007 |
300-1,600 individuals |
A1 |
Red-footed Falcon Falco vespertinus |
VU |
breeding |
1996-2007 |
10-20 breeding pairs |
A1 |
A4iv Species group - soaring birds/cranes |
n/a |
passage |
1996-2007 |
2,000-4,000 individuals |
B1iv |
A4iii Species group - waterbirds |
n/a |
breeding |
1996-2007 |
min 20,000 breeding pairs |
A4iii |
A4iii Species group - waterbirds |
n/a |
passage |
1996-2007 |
min 100,000 individuals |
A4iii |
The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2009).
For more information about the IUCN Habitat classification, please click