Valley of the Yorkutayakha river

IBA Criteria

Year of most recent IBA criteria assessment: 2006

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Tundra Swan Cygnus columbianus LC breeding 1994-2000 10-15 breeding pairs A3
Red-breasted Goose Branta ruficollis VU passage 1999 500-1,000 individuals A1
Greater White-fronted Goose Anser albifrons LC breeding 2000 100 breeding pairs A3
Lesser White-fronted Goose Anser erythropus VU breeding 1999 3 breeding pairs A3
Long-tailed Duck Clangula hyemalis VU breeding 2000 1,500 breeding pairs A3
King Eider Somateria spectabilis LC breeding 2000 300-400 breeding pairs A3
Temminck's Stint Calidris temminckii LC breeding 2000 500-700 breeding pairs A3
Long-tailed Jaeger Stercorarius longicaudus LC breeding 2000 10 breeding pairs A3
Arctic Jaeger Stercorarius parasiticus LC breeding 2000 present A3
Pomarine Jaeger Stercorarius pomarinus LC breeding 2000 present A3
Rough-legged Buzzard Buteo lagopus LC breeding 2000 70 breeding pairs A3
Red-throated Pipit Anthus cervinus LC breeding 2000 present A3
Lapland Longspur Calcarius lapponicus LC breeding 2000 present A3
A4iii Species group - waterbirds n/a passage 2000 20,000 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


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

Land use

Land-use Extent (% of site)
rangeland/pastureland -
fisheries/aquaculture -
hunting -
not utilised -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Valley of the Yorkutayakha river. Downloaded from on 10/07/2020.