The site was identified as important in 2005 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 |
Greylag Goose Anser anser |
LC |
passage |
1995 |
200-500 individuals |
B1i |
Bean Goose Anser fabalis |
LC |
passage |
1995 |
2,000-10,000 individuals |
A4i, B1i |
Greater White-fronted Goose Anser albifrons |
LC |
passage |
1995 |
10,000-30,000 individuals |
A4i, B1i |
Lesser White-fronted Goose Anser erythropus |
VU |
passage |
1995 |
50-250 individuals |
B1i |
Common Pochard Aythya ferina |
VU |
breeding |
1995 |
1,500-2,000 breeding pairs |
B1i |
Ferruginous Duck Aythya nyroca |
NT |
breeding |
1995 |
50-150 breeding pairs |
A1 |
Garganey Spatula querquedula |
LC |
breeding |
1995 |
6,000-10,000 breeding pairs |
A4i, B1i, B2 |
Gadwall Mareca strepera |
LC |
breeding |
1995 |
600-800 breeding pairs |
A4i, B1i, B2 |
Eurasian Wigeon Mareca penelope |
LC |
passage |
1995 |
10,000-20,000 individuals |
A4i, B1i |
Mallard Anas platyrhynchos |
LC |
breeding |
1995 |
10,000-15,000 breeding pairs |
B1i |
Corncrake Crex crex |
LC |
breeding |
1995 |
500-2,000 breeding pairs |
A1 |
Spotted Crake Porzana porzana |
LC |
breeding |
1996 |
700 breeding pairs |
B3 |
Little Crake Zapornia parva |
LC |
breeding |
1996 |
300 breeding pairs |
B3 |
Black Stork Ciconia nigra |
LC |
breeding |
1995 |
50-70 breeding pairs |
A4i, B1i, B2 |
White Stork Ciconia ciconia |
LC |
breeding |
1995 |
300-500 breeding pairs |
B2 |
Black-tailed Godwit Limosa limosa |
NT |
breeding |
1986 |
500-1,000 breeding pairs |
B2 |
Great Snipe Gallinago media |
NT |
breeding |
1995 |
1,000 breeding pairs |
A1 |
Common Redshank Tringa totanus |
LC |
breeding |
1986 |
1,000 breeding pairs |
A4i, B1i, B2 |
Little Gull Hydrocoloeus minutus |
LC |
breeding |
1996 |
50-100 breeding pairs |
B2 |
Little Tern Sternula albifrons |
LC |
breeding |
1986 |
150-250 breeding pairs |
B1i, B2 |
White-winged Tern Chlidonias leucopterus |
LC |
breeding |
1995 |
3,000-7,000 breeding pairs |
A4i, B1i |
Black Tern Chlidonias niger |
LC |
breeding |
1995 |
500-1,000 breeding pairs |
A4i, B1i, B2 |
Short-eared Owl Asio flammeus |
LC |
resident |
1996 |
30-60 breeding pairs |
B2 |
Tawny Owl Strix aluco |
LC |
resident |
1990 |
300 breeding pairs |
B3 |
Eurasian Eagle-owl Bubo bubo |
LC |
breeding |
1990 |
10-20 breeding pairs |
B2 |
Greater Spotted Eagle Clanga clanga |
VU |
breeding |
2001 |
13-20 breeding pairs |
A1 |
Montagu's Harrier Circus pygargus |
LC |
breeding |
1995 |
50 breeding pairs |
B3 |
European Roller Coracias garrulus |
LC |
breeding |
1986 |
30 breeding pairs |
B2 |
Aquatic Warbler Acrocephalus paludicola |
VU |
breeding |
1996 |
150-400 males |
A1 |
Collared Sand Martin Riparia riparia |
LC |
breeding |
1986 |
20,000-30,000 breeding pairs |
B2 |
A4iii Species group - waterbirds |
n/a |
passage |
1995 |
80,000 individuals |
A4iii |
A4iii Species group - waterbirds |
n/a |
breeding |
1995 |
26,000-43,000 breeding pairs |
A4iii |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2005) may differ.
1.