Westland Petrel Procellaria westlandica
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Family: Procellariidae (Petrels, Shearwaters)

Authority: Falla, 1946

Red List Category

Criteria: D2

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Justification of Red List category
This species qualifies as Vulnerable because it is restricted to one very small area when breeding, rendering the population highly vulnerable to stochastic events and other potential threats.

Population size: 10700

Population trend: Stable

Extent of occurrence (breeding/resident): 30,600,000 km2

Country endemic: Yes

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

Recommended citation
BirdLife International (2017) Species factsheet: Procellaria westlandica. Downloaded from on 23/10/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from on 23/10/2017.