Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
The population of this species has increased as a result of intensive conservation action, and exceeded 50 mature individuals in 1993, and 300 in 2000. However, it has a very small range concentrated in just a few locations, and remains threatened by a continuing decline in the quality of suitable habitat. For these reasons, the species is still listed as Endangered, however it may become eligible for downlisting in the future. Numbers fluctuate owing to predation and disease and it seems doubtful that present populations could be maintained without the current intense management programme.
240-260 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 - Afrotropical - realm
IUCN Ecosystem -- Terrestrial biome