Henderson Island Crake Zapornia atra

Family: Rallidae (Rails, Gallinules, Coots)

Authority: (North, 1908)

Red List Category

Criteria: D2

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Justification of Red List category
This species qualifies as Vulnerable as it is only found on one small island. The accidental introduction of alien species could result in rapid population decline, or even extinction, as experienced by many other flightless island rails.

Population size: 3800-8400, 5600 mature individuals

Population trend: stable

Extent of occurrence (breeding/resident): 80 km2

Country endemic: yes

Land-mass type - oceanic island
Realm - Oceanic
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2023) Species factsheet: Zapornia atra. Downloaded from on 03/12/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from on 03/12/2023.