CR
Sao Tome Grosbeak Crithagra concolor



Family: Fringillidae (Finches and Hawaiian honeycreepers)

Authority: (Barboza du Bocage, 1888)

Red List Category

Criteria: B1ab(iii,v); C2a(ii)

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

Justification of Red List category
This species qualifies as Critically Endangered because it has a very small population which is suspected to be in decline owing to habitat degradation. It is found in only one location, and occupies a very small area of primary forest which, although it is not severely threatened, remains unprotected and might be vulnerable in the future. It is unclear whether introduced predators are impacting its population. Recent observations extend the known range, elevation and habitat, but the known population currently remains extremely small.



BirdLife Species Champion: The Peter Smith Trust

BirdLife Species Guardian: SPEA (Portugal)

Population size: 50-249

Population trend: Decreasing

Distribution size (breeding/resident): 200 km2

Country endemic: Yes

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

Recommended citation
BirdLife International (2016) Species factsheet: Crithagra concolor. Downloaded from http://www.birdlife.org on 07/12/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 07/12/2016.