Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
This species is confined to one very small island, where its population fluctuates in response to rainfall and appears to reach extremely small numbers. Climate change may increase drought in Cape Verde, adding to the likelihood of extinction. As a ground-nester, the species is highly at risk from the accidental introduction of predators. For all of these reasons, it is classified as Critically Endangered.
BirdLife Species Guardian:
Michael Brooke (University of Cambridge) & Paul Donald (RSPB)
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 - Afrotropical - realm
Realm - Palearctic - realm
IUCN Ecosystem -- Freshwater biome
IUCN Ecosystem -- Terrestrial biome
IUCN Ecosystem -- Marine biome