Watershed of the Mulym'ya and Bolshoy Tap rivers

IBA Justification

The site was identified as important in 2006 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):
Species Current IUCN Red List Category Season Year(s) Population estimate at site IBA criteria met
Hazel Grouse Tetrastes 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

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2006).


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Forest -
Grassland -
Wetlands (inland) -
Artificial/Terrestrial -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
forestry -
fisheries/aquaculture -
hunting -
tourism/recreation -
urban/industrial/transport -

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Watershed of the Mulym'ya and Bolshoy Tap rivers. Downloaded from on 22/09/2023.