Lowland swamps in the valley of Tungur and Nenyuga rivers

IBA Criteria

Year of most recent IBA criteria assessment: 2013

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Black-billed Capercaillie Tetrao urogalloides LC breeding 2010-2012 500-1,000 breeding pairs A3
Tundra Swan Cygnus columbianus LC passage 2010-2011 11,000-22,000 individuals A4i
Bean Goose Anser fabalis LC passage 2010-2012 9,000-19,000 individuals A4i
Common Goldeneye Bucephala clangula LC breeding 2010-2012 500-1,500 breeding pairs A3
Smew Mergellus albellus LC breeding 2010-2012 300-1,000 breeding pairs A3
Falcated Duck Mareca falcata NT breeding 2010-2012 300-1,500 breeding pairs A4i
Eurasian Wigeon Mareca penelope LC breeding 2010-2012 300-1,500 breeding pairs A3
Siberian Crane Leucogeranus leucogeranus CR passage 2010-2012 min 2 individuals A1
Common Crane Grus grus LC breeding 2010-2012 5-100 breeding pairs A3
A4iii Species group - waterbirds n/a passage 1990-2012 100,000-300,000 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)
Forest -
Shrubland -
Wetlands (inland) -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
forestry -
hunting -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Lowland swamps in the valley of Tungur and Nenyuga rivers. Downloaded from on 23/03/2023.