Kuloy river

IBA Criteria

Year of most recent IBA criteria assessment: 2007

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Whooper Swan Cygnus cygnus LC breeding 1999 2,000-3,000 breeding pairs A4i, B1i
Bean Goose Anser fabalis LC passage 1999 10,000-20,000 individuals A4i, B1i
Greater White-fronted Goose Anser albifrons LC passage 1999 50,000-100,000 individuals A4i, B1i
Lesser White-fronted Goose Anser erythropus VU passage 1999 2,000-3,000 individuals A1, A4i, B1i
Common Goldeneye Bucephala clangula LC breeding 1999 1,500-2,000 breeding pairs A4i, B1i
Smew Mergellus albellus LC breeding 1999 700-1,000 breeding pairs A4i, B1i, B2
Goosander Mergus merganser LC breeding 1999 800-1,000 breeding pairs A4i, B1i
Red-breasted Merganser Mergus serrator LC passage 1999 4,000-6,000 individuals A4i, B1i
Tufted Duck Aythya fuligula LC breeding 1999 3,000-4,000 breeding pairs B1i
Eurasian Wigeon Mareca penelope LC breeding 1999 15,000-20,000 breeding pairs A4i, B1i
Common Teal Anas crecca LC breeding 1999 4,000-5,000 breeding pairs B1i
Arctic Loon Gavia arctica LC breeding 1999 700-1,000 breeding pairs A4i, B1i
Mew Gull Larus canus LC breeding 1999 2,000-3,000 breeding pairs B2
A4iii Species group - waterbirds n/a passage 1999 50,000-99,999 individuals A4iii

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Kuoiskiy Zakaznik 24,700 protected area overlaps with site 24,700


IUCN Habitat Habitat detail Extent (% of site)
Forest Native coniferous woodland -
Wetlands (inland) Standing freshwater, Rivers and streams, Raised bogs -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
forestry -
urban/industrial/transport -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Kuloy river. Downloaded from on 15/08/2022.