Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
This species has an extremely small range, restricted to fragmented habitat on a single island, where habitat loss, predation by introduced mammals and possibly competition are causing continuing declines. It consequently qualifies as Critically Endangered.
490-2000 mature individuals
Distribution size (breeding/resident):
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 - Neotropical - realm
IUCN Ecosystem -- Terrestrial biome