EX
Bonin Grosbeak Chaunoproctus ferreorostris



Search terms 

Red List Category

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

Justification of Red List category
This species was known from Japan's Ogasawara Islands, but it is now Extinct and has not been certainly reported since 1828. Forest destruction and predation by introduced species are thought to have been responsible.

Population size: mature individuals

Population trend:

Country endemic: No

Attributes
Land-mass type - oceanic island - Oceanic islands are islands or island groups that are <200,000 sq km in size and separated from other land masses by >200 m sea depth. Generally Oceanic islands are islands or island groups that are <200,000 sq km in size and separated from other land masses by >200 m sea depth. Generally they have never been connected to a continental area by a land-ridge, and are volcanic in origin.
Realm - Palearctic - realm
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2016) Species factsheet: Chaunoproctus ferreorostris. 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.