Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
This species is classified as Endangered because it has an extremely small population. Translocated populations may not be sustainable. If habitat loss continues on its last island stronghold, and proves significant, it may require uplisting to Critically Endangered. However, recent data suggest that the population is now increasing and additional sub-populations are becoming established.
156-220 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
IUCN Ecosystem -- Marine biome