The site was identified as important in 2002 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Species |
Red List1 |
Season |
Year(s) |
Size |
IBA criteria |
Mute Swan Cygnus olor |
LC |
winter |
1990-1999 |
15,000 individuals |
A4i, B1i, C3 |
Whooper Swan Cygnus cygnus |
LC |
winter |
1990-1999 |
2,500 individuals |
A4i, B1i, B3, C2, C6 |
Tundra Swan Cygnus columbianus |
LC |
winter |
1990-1999 |
600 individuals |
A4i, B1i, B2, C2 |
Barnacle Goose Branta leucopsis |
LC |
winter |
1990-1999 |
16,200 individuals |
A4i, B1i, B2, C2, C6 |
Greylag Goose Anser anser |
LC |
winter |
1990-1999 |
41,000 individuals |
A4i, B1i, C3 |
Bean Goose Anser fabalis |
LC |
winter |
1990-1999 |
4,000 individuals |
A4i, B1i, C3 |
Greater White-fronted Goose Anser albifrons |
LC |
winter |
1990-1999 |
40,000 individuals |
A4i, B1i, C3 |
Long-tailed Duck Clangula hyemalis |
VU |
winter |
1990-1999 |
100,000 individuals |
A4i, B1i, C3 |
Common Goldeneye Bucephala clangula |
LC |
winter |
1990-1999 |
5,000 individuals |
A4i, B1i, C3 |
Smew Mergellus albellus |
LC |
winter |
1990-1999 |
1,000 individuals |
A4i, B1i, C2 |
Goosander Mergus merganser |
LC |
winter |
1990-1999 |
2,000 individuals |
B1i, C3 |
Red-breasted Merganser Mergus serrator |
LC |
winter |
1990-1999 |
3,000 individuals |
A4i, B1i, C3 |
Common Pochard Aythya ferina |
VU |
winter |
1990-1999 |
10,000 individuals |
B1i, C3 |
Tufted Duck Aythya fuligula |
LC |
winter |
1990-1999 |
10,000 individuals |
B1i, C3 |
Greater Scaup Aythya marila |
LC |
winter |
1990-1999 |
30,000 individuals |
A4i, B1i, B2, C3 |
Northern Shoveler Spatula clypeata |
LC |
winter |
1990-1999 |
2,000 individuals |
B1i, C3 |
Gadwall Mareca strepera |
LC |
winter |
1990-1999 |
2,000 individuals |
A4i, B1i, C3 |
Gadwall Mareca strepera |
LC |
breeding |
1991-1999 |
87 breeding pairs |
B2 |
Eurasian Wigeon Mareca penelope |
LC |
winter |
1990-1999 |
50,000 individuals |
A4i, B1i, C3 |
Northern Pintail Anas acuta |
LC |
winter |
1990-1999 |
1,500 individuals |
B1i, C3 |
Common Teal Anas crecca |
LC |
winter |
1990-1999 |
11,200 individuals |
B1i, C3 |
Horned Grebe Podiceps auritus |
VU |
winter |
1990-1999 |
300 individuals |
A4i, B1i, C2, C6 |
Common Crane Grus grus |
LC |
winter |
1990-1999 |
40,000 individuals |
A4i, B1i, C2, C6 |
White Stork Ciconia ciconia |
LC |
breeding |
1994 |
27 breeding pairs |
C6 |
Great Cormorant Phalacrocorax carbo |
LC |
winter |
1990-1999 |
15,000 individuals |
A4i, B1i, C3 |
Pied Avocet Recurvirostra avosetta |
LC |
breeding |
1990-1999 |
173 breeding pairs |
B3, C6 |
Pied Avocet Recurvirostra avosetta |
LC |
winter |
1990-1999 |
1,500-2,330 individuals |
A4i, B1i, B2, C2, C6 |
Grey Plover Pluvialis squatarola |
VU |
winter |
1990-1999 |
2,000 individuals |
A4i, B1i, C3 |
Eurasian Golden Plover Pluvialis apricaria |
LC |
winter |
1990-1999 |
20,000-30,000 individuals |
A4i, B1i, C2, C6 |
Bar-tailed Godwit Limosa lapponica |
NT |
passage |
1990-1999 |
1,100 individuals |
A4i, B1i, C2 |
Ruff Calidris pugnax |
LC |
breeding |
1990-1999 |
28 breeding pairs |
C6 |
Dunlin Calidris alpina |
NT |
passage |
1990-1999 |
30,000 individuals |
A4i, B1i, C3 |
Little Gull Hydrocoloeus minutus |
LC |
non-breeding |
1990-1999 |
800 individuals |
A4i, B1i, C3 |
Mediterranean Gull Larus melanocephalus |
LC |
breeding |
1990-1999 |
6 breeding pairs |
C6 |
Little Tern Sternula albifrons |
LC |
breeding |
1990-1999 |
103 breeding pairs |
B2, C6 |
Caspian Tern Hydroprogne caspia |
LC |
breeding |
1990-1999 |
1 breeding pairs |
C6 |
Caspian Tern Hydroprogne caspia |
LC |
non-breeding |
1990-1999 |
400 individuals |
A4i, B1i, C2, C6 |
Common Tern Sterna hirundo |
LC |
breeding |
1990-1999 |
400-1,400 breeding pairs |
C6 |
Sandwich Tern Thalasseus sandvicensis |
LC |
breeding |
1990-1999 |
1,000 breeding pairs |
B2, C6 |
Short-eared Owl Asio flammeus |
LC |
breeding |
1990-1999 |
3 breeding pairs |
C6 |
Western Marsh-harrier Circus aeruginosus |
LC |
breeding |
1987 |
5 breeding pairs |
C6 |
Hen Harrier Circus cyaneus |
LC |
winter |
1990-1999 |
10-50 individuals |
C6 |
White-tailed Sea-eagle Haliaeetus albicilla |
LC |
breeding |
1990-1999 |
14 breeding pairs |
A1, B2, C1, C6 |
White-tailed Sea-eagle Haliaeetus albicilla |
LC |
winter |
1990-1999 |
50-70 individuals |
C6 |
Peregrine Falcon Falco peregrinus |
LC |
breeding |
1990-1999 |
1 breeding pairs |
C6 |
Peregrine Falcon Falco peregrinus |
LC |
winter |
1990-1999 |
10-20 individuals |
C6 |
Collared Sand Martin Riparia riparia |
LC |
breeding |
1990-1999 |
3,200 breeding pairs |
B2 |
Barred Warbler Curruca nisoria |
LC |
breeding |
1991-1999 |
100 breeding pairs |
C6 |
A4iv Species group - soaring birds/cranes |
n/a |
passage |
1990-1999 |
40,000 individuals |
A4iv, B1iv, C5 |
A4iii Species group - waterbirds |
n/a |
winter |
1990-1999 |
425,800-436,630 individuals |
A4iii, C4 |
A4iii Species group - waterbirds |
n/a |
passage |
1990-1999 |
31,100 individuals |
A4iii, C4 |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2002) may differ.