Cocos Flycatcher Nesotriccus ridgwayi

Family: Tyrannidae (Tyrant-flycatchers)

Authority: Townsend, 1895

Red List Category

Criteria: D2

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Justification of Red List category
This species is listed as Vulnerable because it has an extremely small range. Introduced herbivores are degrading habitat within its range, but it appears to tolerate some habitat modification and there is (as yet) no evidence of a decline in range or population. If habitat degradation was to intensify, the species could quickly qualify for a higher threat category.

Population size: 6000-15000

Population trend: Stable

Extent of occurrence (breeding/resident): 30 km2

Country endemic: Yes

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

Recommended citation
BirdLife International (2022) Species factsheet: Nesotriccus ridgwayi. Downloaded from on 25/06/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from on 25/06/2022.