The site was identified as internationally important for bird conservation in 2004 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 |
Black-billed Capercaillie Tetrao urogalloides |
LC |
breeding (1998) |
frequent |
A3 |
Whooper Swan Cygnus cygnus |
LC |
breeding (1998) |
5–10 pairs |
A3 |
Bean Goose Anser fabalis |
LC |
passage (1998) |
20,000–30,000 birds |
A4i |
Greater White-fronted Goose Anser albifrons |
LC |
passage (1998) |
abundant |
A4i |
Lesser White-fronted Goose Anser erythropus |
VU |
breeding (1998) |
rare |
A1, A3 |
Long-tailed Duck Clangula hyemalis |
VU |
breeding (1998) |
rare |
A3 |
Common Eider Somateria mollissima |
NT |
breeding (1998) |
100–120 pairs |
A3, A4i |
Smew Mergellus albellus |
LC |
breeding (1998) |
rare |
A3 |
Greater Scaup Aythya marila |
LC |
breeding (1998) |
frequent |
A3 |
Horned Grebe Podiceps auritus |
VU |
breeding (1998) |
rare |
A3 |
Eurasian Oystercatcher Haematopus ostralegus |
NT |
breeding (1998) |
15–20 pairs |
A4i |
Whimbrel Numenius phaeopus |
LC |
passage (1998) |
abundant |
A4i |
Far Eastern Curlew Numenius madagascariensis |
EN |
breeding (1998) |
common |
A3, A4i |
Bar-tailed Godwit Limosa lapponica |
NT |
passage (1998) |
frequent |
A4i |
Black-tailed Godwit Limosa limosa |
NT |
breeding (1998) |
abundant |
A4i |
Great Knot Calidris tenuirostris |
EN |
passage (1998) |
common |
A4i |
Red-necked Stint Calidris ruficollis |
NT |
passage (1998) |
abundant |
A4i |
Common Greenshank Tringa nebularia |
LC |
breeding (1998) |
common |
A3 |
Spotted Greenshank Tringa guttifer |
EN |
breeding (1998) |
2–3 pairs |
A1, A2 |
Spotted Greenshank Tringa guttifer |
EN |
passage (1998) |
max 40 birds |
A1, A4i |
Steller's Sea-eagle Haliaeetus pelagicus |
VU |
breeding (1998) |
5–6 pairs |
A1, A3 |
Middendorff's Grasshopper-warbler Helopsaltes ochotensis |
LC |
breeding (1998) |
frequent |
A3 |
Red-throated Pipit Anthus cervinus |
LC |
breeding (1998) |
frequent |
A3 |
Lapland Longspur Calcarius lapponicus |
LC |
breeding (1998) |
rare |
A3 |
A4iii Species group - waterbirds |
n/a |
passage (1998) |
50,000–80,000 birds |
A4iii |