CR
Mangrove Finch Geospiza heliobates



Family: Thraupidae (Tanagers)

Authority: (Snodgrass & Heller, 1901)

Red List Category

Criteria: B1ab(i,ii,iv,v)+2ab(i,ii,iv,v); C2a(i); D

Click here for more information about the Red List categories and criteria

Justification of Red List category
This species has an extremely small, severely fragmented range, and potentially as few as two viable subpopulations. Recent surveys suggest that the number of locations and mature individuals are both declining, and consequently it qualifies as Critically Endangered.



Population size: 40-80

Population trend: Decreasing

Distribution size (breeding/resident): 18 km2

Country endemic: Yes

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

Recommended citation
BirdLife International (2016) Species factsheet: Geospiza heliobates. Downloaded from http://www.birdlife.org on 09/12/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 09/12/2016.