Family: Anatidae (Ducks, Geese, Swans)

Authority: (Pallas, 1769)

Red List Category

Criteria: A2bcd+3bcd+4bcd

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Justification of Red List category
This species is listed as Vulnerable because it is undergoing a rapid population reduction, particularly in the key Alaskan populations. Further studies are needed to determine the causes of these declines, and whether some populations may have shifted to unsurveyed areas within the range.

Population size: unknown

Population trend: decreasing

Extent of occurrence (breeding/resident): 9,240,000 km²

Country endemic: no

Attributes
Land-mass type - continent
Realm - Nearctic
Realm - Palearctic
IUCN System - Freshwater
IUCN System - Marine