Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
This species is endemic to one tiny island where, despite its very small population, it was considered secure. However, since the first observation of black rats in 2000 it has declined extremely rapidly and the current population is now estimated to be extremely low. It hence qualifies as Critically Endangered.
BirdLife Species Guardian:
Société d'Ornithologie de Polynésie (MANU)
33 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