Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
This species is classified as Endangered as it has a very small and fragmented population which is continuing to decline. It is clear that invasive species are the primary reason for this decline, and although eradication at some locations has been conducted and further eradication programmes are planned for the future, this species remains highly threatened.
250-999 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
Realm - Oceanic - realm
IUCN Ecosystem -- Marine biome