VU
Long-tailed Duck Clangula hyemalis



Family: Anatidae (Ducks, Geese, Swans)

Authority: (Linnaeus, 1758)

Red List Category

Criteria: A4bce

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Justification of Red List category
This species has been listed as Vulnerable because of an apparent severe decline detected in the wintering population in the Baltic Sea between the early 1990s and late 2000s. This rate of decline implies that the global population will undergo at least a ≥30 decline over three generations (1993-2020), even when factoring-in uncertainty regarding the sizes and trends of other populations. Improved knowledge regarding populations outside the Baltic Sea might lead to the species being uplisted to Endangered if the overall rate of decline can be confidently shown to be very rapid.



Population size:

Population trend: Decreasing

Distribution size (breeding/resident): 60,100,000 km2

Country endemic: No

Attributes
Realm - Indomalayan
Realm - Nearctic
Realm - Palearctic
IUCN Ecosystem -- Freshwater biome
IUCN Ecosystem -- Terrestrial biome
IUCN Ecosystem -- Marine biome

Recommended citation
BirdLife International (2016) Species factsheet: Clangula hyemalis. Downloaded from http://www.birdlife.org on 10/12/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 10/12/2016.