The site was identified as internationally important for bird conservation in 2016 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 |
Lesser White-fronted Goose Anser erythropus |
VU |
passage (1998) |
present |
A1 |
Common Goldeneye Bucephala clangula |
LC |
breeding (1998) |
present |
A3, A4i |
Harlequin Duck Histrionicus histrionicus |
LC |
breeding (1991) |
2,000–4,000 birds |
A4i |
Baikal Teal Sibirionetta formosa |
LC |
passage (1998) |
min 2,000 birds |
A1 |
Hooded Crane Grus monacha |
VU |
breeding (1998) |
1–3 pairs |
A1, A3 |
Red-throated Loon Gavia stellata |
LC |
breeding (1998) |
uncommon |
A4i |
Spoon-billed Sandpiper Calidris pygmaea |
CR |
passage (1998) |
present |
A1 |
Green Sandpiper Tringa ochropus |
LC |
breeding (1998) |
present |
A3 |
Spotted Greenshank Tringa guttifer |
EN |
breeding (1998) |
present |
A1 |
Aleutian Tern Onychoprion aleuticus |
VU |
breeding (1998) |
150–200 pairs |
A4i |
Horned Puffin Fratercula corniculata |
LC |
breeding (1998) |
common |
A4ii |
Long-billed Murrelet Brachyramphus perdix |
NT |
breeding (1986–1992) |
200–1,000 birds |
A1, A4ii |
Spectacled Guillemot Cepphus carbo |
LC |
breeding (1991–2011) |
12,000–14,000 birds |
A4ii |
Steller's Sea-eagle Haliaeetus pelagicus |
VU |
resident (1998) |
rare |
A1, A3 |
Siberian Jay Perisoreus infaustus |
LC |
resident (1998) |
uncommon |
A3 |
Middendorff's Grasshopper-warbler Helopsaltes ochotensis |
LC |
breeding (1998) |
uncommon |
A3 |
A4iii Species group - seabirds |
n/a |
breeding (2004) |
min 10,000 pairs |
A4iii |
A4iii Species group - waterbirds |
n/a |
unknown (2004) |
min 20,000 birds |
A4iii |