Ascension Frigatebird Fregata aquila

Family: Fregatidae (Frigatebirds)

Authority: (Linnaeus, 1758)

Red List Category

Criteria: D2

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Justification of Red List category
This species is classified as Vulnerable as it has a very small area of occupancy, with the vast majority of the global population restricted to one tiny island where invasion by feral cats was a concern. Following the cat eradication on the adjacent main island of Ascension, this risk has now been substantially reduced, but censusing the population and ascertaining trends is particularly problematic.

Population size: 17000-21000 mature individuals

Population trend: stable

Extent of occurrence (breeding/resident): 2,620,000 km2

Country endemic: yes

Land-mass type - oceanic island
Realm - Afrotropical
IUCN Ecosystem -- Marine biome

Recommended citation
BirdLife International (2024) Species factsheet: Fregata aquila. Downloaded from on 21/02/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from on 21/02/2024.