CR
Mangrove Finch Geospiza heliobates



Family: Thraupidae (Tanagers)

Authority: (Snodgrass & Heller, 1901)

Red List Category

Criteria: B1ab(ii,iii,v); C2a(i,ii); 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 only two viable subpopulations. Recent surveys suggest that the number of locations and mature individuals are both declining significantly, and consequently it qualifies as Critically Endangered.



Population size: 20-40 mature individuals

Population trend: decreasing

Extent of occurrence (breeding/resident): 16 km2

Country endemic: yes

Attributes
Land-mass type - oceanic island
Realm - Neotropical
IUCN System - Terrestrial

Recommended citation
BirdLife International (2024) Species factsheet: Mangrove Finch Geospiza heliobates. Downloaded from https://datazone.birdlife.org/species/factsheet/mangrove-finch-geospiza-heliobates on 22/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 22/12/2024.