The site was identified as internationally important for bird conservation in 2000 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Species |
Red List |
Season (year/s of estimate) |
Size |
IBA criteria |
Mute Swan Cygnus olor |
LC |
non-breeding (1996) |
1,000 birds |
B1i |
Greylag Goose Anser anser |
LC |
passage (1996) |
5,000 birds |
A4i, B1i |
Greater White-fronted Goose Anser albifrons |
LC |
passage (1992) |
200,000 birds |
A4i, B1i |
Lesser White-fronted Goose Anser erythropus |
VU |
passage (1998) |
1,000 birds |
A1, A4i, B1i |
Common Shelduck Tadorna tadorna |
LC |
passage (1992) |
12,000 birds |
A4i, B1i |
Eurasian Wigeon Mareca penelope |
LC |
passage (1992) |
62,000–65,000 birds |
A4i, B1i |
Northern Pintail Anas acuta |
LC |
passage (1992) |
33,000–35,000 birds |
A4i, B1i |
Demoiselle Crane Anthropoides virgo |
LC |
breeding (1996) |
1,000 pairs |
A3 |
Common Crane Grus grus |
LC |
passage (1992) |
20,000–30,000 birds |
A4i, B1i |
Common Crane Grus grus |
LC |
non-breeding (1996) |
20,000 birds |
A4i, B1i |
Great Bustard Otis tarda |
EN |
breeding (1989) |
2–3 pairs |
B2 |
Great Bustard Otis tarda |
EN |
passage (1989) |
1,000 birds |
A1 |
Glossy Ibis Plegadis falcinellus |
LC |
breeding (1992) |
470–500 pairs |
A4i, B1i, B2 |
Black-crowned Night Heron Nycticorax nycticorax |
LC |
breeding (1992) |
150–200 pairs |
B2 |
Purple Heron Ardea purpurea |
LC |
breeding (1992) |
120–200 pairs |
B2 |
Great White Egret Ardea alba |
LC |
breeding (1992) |
400–500 pairs |
A4i, B1i |
Little Egret Egretta garzetta |
LC |
breeding (1992) |
400–500 pairs |
A4i, B1i |
Great Cormorant Phalacrocorax carbo |
LC |
breeding (1992) |
8,270 pairs |
A4i, B1i |
Pied Avocet Recurvirostra avosetta |
LC |
breeding (1992) |
500–600 pairs |
A4i, B1i, B3 |
Pied Avocet Recurvirostra avosetta |
LC |
passage (1992) |
1,000–2,500 birds |
A4i, B1i |
Black-winged Stilt Himantopus himantopus |
LC |
breeding (1992) |
600–800 pairs |
A4i, B1i |
Black-winged Stilt Himantopus himantopus |
LC |
passage (1992) |
1,000–2,500 birds |
A4i, B1i |
Grey Plover Pluvialis squatarola |
VU |
passage (1992) |
3,500–5,000 birds |
A4i, B1i |
Common Ringed Plover Charadrius hiaticula |
LC |
passage (1992) |
2,000–4,000 birds |
A4i, B1i |
Kentish Plover Charadrius alexandrinus |
LC |
passage (1992) |
500–1,000 birds |
A4i, B1i |
Kentish Plover Charadrius alexandrinus |
LC |
breeding (1992) |
250–500 pairs |
A4i, B1i, B2 |
Bar-tailed Godwit Limosa lapponica |
NT |
passage (1992) |
2,000–5,000 birds |
A4i, B1i |
Ruddy Turnstone Arenaria interpres |
NT |
passage (1992) |
500–1,500 birds |
A4i, B1i |
Ruff Calidris pugnax |
LC |
passage (1992) |
43,500 birds |
A4i, B1i |
Broad-billed Sandpiper Calidris falcinellus |
VU |
passage (1992) |
6,000–8,000 birds |
A4i, B1i |
Sanderling Calidris alba |
LC |
passage (1992) |
700–2,000 birds |
A4i, B1i |
Dunlin Calidris alpina |
NT |
passage (1992) |
127,600 birds |
A4i, B1i |
Little Stint Calidris minuta |
LC |
passage (1992) |
26,700 birds |
A4i, B1i |
Great Snipe Gallinago media |
NT |
passage (1992) |
10–200 birds |
A1 |
Spotted Redshank Tringa erythropus |
LC |
passage (1992) |
1,500–2,500 birds |
A4i, B1i |
Common Redshank Tringa totanus |
LC |
passage (1992) |
11,800 birds |
A4i, B1i |
Common Redshank Tringa totanus |
LC |
breeding (1992) |
400–500 pairs |
B1i, B2 |
Marsh Sandpiper Tringa stagnatilis |
LC |
passage (1992) |
1,000–3,000 birds |
A4i, B1i |
Collared Pratincole Glareola pratincola |
LC |
passage (1992) |
300–600 birds |
A4i, B1i |
Collared Pratincole Glareola pratincola |
LC |
breeding (1992) |
150–300 pairs |
A4i, B1i, B2 |
Little Gull Hydrocoloeus minutus |
LC |
passage (1992) |
3,000–10,000 birds |
A4i, B1i |
Slender-billed Gull Larus genei |
LC |
breeding (1992) |
1,850–2,150 pairs |
A4i, B1i |
Pallas's Gull Larus ichthyaetus |
LC |
breeding (1992) |
475–605 pairs |
A3, A4i, B1i |
Mediterranean Gull Larus melanocephalus |
LC |
breeding (1992) |
2,450 pairs |
A4i, B1i, B3 |
Caspian Gull Larus cachinnans |
LC |
breeding (1992) |
3,800 pairs |
A4i, B1i |
Little Tern Sternula albifrons |
LC |
breeding (1992) |
360 pairs |
A4i, B1i, B2 |
Caspian Tern Hydroprogne caspia |
LC |
breeding (1989) |
56–159 pairs |
A4i, B1i, B2 |
Whiskered Tern Chlidonias hybrida |
LC |
passage (1992) |
250–1,000 birds |
A4i, B1i |
Black Tern Chlidonias niger |
LC |
passage (1992) |
500–2,000 birds |
A4i, B1i |
Common Tern Sterna hirundo |
LC |
breeding (1992) |
2,900–3,080 pairs |
A4i, B1i |
Common Gull-billed Tern Gelochelidon nilotica |
LC |
breeding (1992) |
315 pairs |
A4i, B1i, B2 |
Sandwich Tern Thalasseus sandvicensis |
LC |
breeding (1992) |
4,700 pairs |
A4i, B1i, B2 |
A4iv Species group - soaring birds/cranes |
n/a |
passage (1992) |
20,000–30,000 birds |
A4iv, B1iv |
A4iii Species group - waterbirds |
n/a |
passage (1992) |
100,000-499,999 birds |
A4iii |
A4iii Species group - waterbirds |
n/a |
breeding (1992) |
20,000-49,999 birds |
A4iii |
A4iii Species group - waterbirds |
n/a |
non-breeding (1996) |
20,000-49,999 birds |
A4iii |