Townsend's Shearwater Puffinus auricularis

Family: Procellariidae (Petrels, Shearwaters)

Authority: Townsend, 1890

Red List Category

Criteria: B2ab(i,ii,iii,v)

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Justification of Red List category
This species has been extirpated from two islands, and breeding is now restricted to an extremely small area on one island, where invasive species are contributing to a population decline. It therefore qualifies as Critically Endangered.

Population size: 250-999

Population trend: Decreasing

Extent of occurrence (breeding/resident): 3,200,000 km2

Country endemic: Yes

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

Recommended citation
BirdLife International (2022) Species factsheet: Puffinus auricularis. Downloaded from on 25/09/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from on 25/09/2022.