Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
This species, the smallest flightless bird in the world, qualifies as Vulnerable because, although abundant, it is restricted to one tiny island and is at permanent risk from chance events such as the accidental introduction of alien predators.
5600 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