Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
Conservation action may have saved this species from extinction. Numbers are now increasing and there is some evidence of a small range expansion. However, the area of apparently suitable (but unoccupied) habitat may be decreasing. If this begins to affect occupied habitat, the species may immediately qualify for uplisting to Endangered. At present, its small population size and small range on a single island qualify it as Vulnerable.
230-330 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 - Neotropical - realm
IUCN Ecosystem -- Terrestrial biome