Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
This species qualifies as Vulnerable as, although recent surveys indicate that there are likely to be over 5,000 mature individuals, the total population remains small, and is restricted to a single subpopulation which is suspected to have declined owing to habitat degradation.
5300-6000 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 - Oceanic - realm
IUCN Ecosystem -- Terrestrial biome