VU
Long-tailed Duck Clangula hyemalis



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Red List Category

Criteria: A4bce

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Justification of Red List category
This species has been uplisted to Vulnerable because an apparently drastic decline detected in the wintering population in the Baltic Sea since at least the early 1990s implies that the global population will undergo at least a rapid 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: mature individuals

Population trend: Decreasing

Distribution size (breeding/resident): 1,570,000 km2

Country endemic: No

Attributes
Realm - Indomalayan - realm
Realm - Nearctic - realm
Realm - Palearctic - realm
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 05/12/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 05/12/2016.