Watershed of the Mulym'ya and Bolshoy Tap rivers

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
Hazel Grouse Bonasa bonasia LC breeding 2004 300-2,000 breeding pairs A3
Western Capercaillie Tetrao urogallus LC resident 2004 100-400 breeding pairs A3
Whooper Swan Cygnus cygnus LC breeding 2004 6-12 breeding pairs A3
Common Goldeneye Bucephala clangula LC breeding 2004 80-600 breeding pairs A4i
Common Goldeneye Bucephala clangula LC breeding 2004 600 breeding pairs A3
Horned Grebe Podiceps auritus VU breeding 2004 12-20 breeding pairs A3
Corncrake Crex crex LC breeding 2004 20-140 breeding pairs A1
Eurasian Curlew Numenius arquata NT breeding 2004 200-1,000 breeding pairs A4i
Long-toed Stint Calidris subminuta LC breeding 2004 3-8 breeding pairs A3
Great Snipe Gallinago media NT breeding 2004 20-50 breeding pairs A1
Green Sandpiper Tringa ochropus LC breeding 2004 20-80 breeding pairs A3
Common Greenshank Tringa nebularia LC breeding 2004 30-100 breeding pairs A3
Northern Hawk-owl Surnia ulula LC breeding 2004 4-8 breeding pairs A3
Great Grey Owl Strix nebulosa LC breeding 2004 8-12 breeding pairs A3
Greater Spotted Eagle Clanga clanga VU breeding 2004 1-3 breeding pairs A1
Siberian Jay Perisoreus infaustus LC breeding 2004 present A3

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)
Forest -
Grassland -
Wetlands (inland) -
Artificial/Terrestrial -
For further information about the habitat classification please click here.

Land use

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

Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Watershed of the Mulym'ya and Bolshoy Tap rivers. Downloaded from on 17/08/2022.