Family: Alcidae (Auks)

Authority: (Salvadori, 1865)

Red List Category

Criteria: B2ab(iii,v);C2a(ii)

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Justification of Red List category
This species has a small breeding range and population which nests at a small number of known locations. The presence of introduced predators on most known and potential breeding islands suggests that numbers are likely to be declining significantly. It consequently qualifies as Vulnerable.

Population size: 6000-10000

Population trend: Decreasing

Extent of occurrence (breeding/resident): 549,000 km²

Country endemic: Yes

Attributes
Land-mass type - shelf island
Realm - Nearctic
IUCN Ecosystem -- Marine biome