Auckland Islands Shag Leucocarbo colensoi

Family: Phalacrocoracidae (Cormorants)

Authority: (Buller, 1888)

Red List Category

Criteria: D2

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Justification of Red List category
This species is classified as Vulnerable because it has a very small range when breeding, being locally restricted to inaccessible coastline sites, and is therefore susceptible to stochastic events and human impacts. Population trends are unknown, but are assumed to be stable.

Population size: 3000

Population trend: Stable

Extent of occurrence (breeding/resident): 5,900 km2

Country endemic: Yes

Land-mass type - oceanic island
Realm - Oceanic
IUCN Ecosystem -- Terrestrial biome
IUCN Ecosystem -- Marine biome

Recommended citation
BirdLife International (2023) Species factsheet: Leucocarbo colensoi. Downloaded from on 01/04/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from on 01/04/2023.