Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
This species qualifies as Critically Endangered because surveys have shown that it is declining extremely rapidly. It now has an extremely small population and is effectively confined to just one island where multiple factors are driving the decline. Urgent conservation measures are required to ensure that this species does not become extinct.
50-249 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