VU
Biak Gerygone Gerygone hypoxantha



Family: Acanthizidae (Thornbills and gerygones)

Authority: Salvadori, 1878

Red List Category

Criteria: C2a(ii)

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Justification of Red List category
This newly-split species is listed as Vulnerable on the basis that it is likely to have a single, small population that is inferred to be declining owing to ongoing loss of habitat.

Population size: 2500-9999

Population trend: Decreasing

Extent of occurrence (breeding/resident): 3,600 km2

Country endemic: Yes

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

Recommended citation
BirdLife International (2017) Species factsheet: Gerygone hypoxantha. Downloaded from http://www.birdlife.org on 21/07/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 21/07/2017.