Family: Phalacrocoracidae (Cormorants)

Authority: (Gray, 1845)

Red List Category

Criteria: C2a(i)

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Justification of Red List category
This species is classified as Vulnerable because it has a small range and is restricted to a small and decreasing number of colonies. Although it is known to abandon and reoccupy sites over decades, the loss of a comparatively large number of locations in recent years is of concern, and although population trends are unclear, the population may be declining.

Population size: 3300-5300 mature individuals

Population trend: decreasing

Extent of occurrence (breeding/resident): 52,900 km²

Country endemic: yes

Attributes
Land-mass type - oceanic island
Realm - Oceanian
IUCN System - Marine