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Location Russia (Asian), Yakutia
Central coordinates 125o 15.00' East  64o 45.00' North
IBA criteria A1, A4i, A4iii
Area 414,625 ha
Altitude 46 - 105m
Year of IBA assessment 2004





Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Northern Pintail Anas acuta unknown  2004  present  A4i  Least Concern 
Lesser White-fronted Goose Anser erythropus breeding  2004  present  A1, A4i  Vulnerable 
Bean Goose Anser fabalis unknown  2004  present  A4i  Least Concern 
Greater White-fronted Goose Anser albifrons unknown  2004  present  A4i  Least Concern 
Brent Goose Branta bernicla unknown  2004  present  A4i  Least Concern 
Tundra Swan Cygnus columbianus unknown  2004  present  A4i  Least Concern 
Falcated Duck Mareca falcata breeding  2004  present  A4i  Near Threatened 
Eurasian Wigeon Mareca penelope unknown  2004  present  A4i  Least Concern 
Northern Shoveler Spatula clypeata unknown  2004  present  A4i  Least Concern 
Baikal Teal Sibirionetta formosa breeding  2004  present  A1, A4i  Least Concern 
Common Teal Anas crecca unknown  2004  present  A4i  Least Concern 
Tufted Duck Aythya fuligula unknown  2004  present  A4i  Least Concern 
Melanitta fusca unknown  2004  present  A4i  Not Recognised 
Common Goldeneye Bucephala clangula unknown  2004  present  A4i  Least Concern 
Smew Mergellus albellus unknown  2004  present  A4i  Least Concern 
Red-breasted Merganser Mergus serrator unknown  2004  present  A4i  Least Concern 
Arctic Loon Gavia arctica unknown  2004  present  A4i  Least Concern 
Red-throated Loon Gavia stellata unknown  2004  present  A4i  Least Concern 
Common Crane Grus grus unknown  2004  present  A4i  Least Concern 
Common Greenshank Tringa nebularia unknown  2004  present  A4i  Least Concern 
Green Sandpiper Tringa ochropus unknown  2004  present  A4i  Least Concern 
Wood Sandpiper Tringa glareola unknown  2004  present  A4i  Least Concern 
Common Sandpiper Actitis hypoleucos unknown  2004  present  A4i  Least Concern 
A4iii Species group - waterbirds unknown  2004  20,000 individuals  unknown  A4iii   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Ust'-Vilyuisky Zakaznik 1,016,000 protected area contains site 414,625  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland)   -
Grassland Edaphic grassland  -
Shrubland   -
Forest Coniferous forest (temperate/boreal)  -

Acknowledgements The identification of IBAs and information collected between 1980 and 2009 provided by the IBA network of the Russian Bird Conservation Union (RBCU).

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Forty islands. Downloaded from http://www.birdlife.org on 22/08/2014

To provide new information to update this factsheet or to correct any errors, please email BirdLife