Weka Gallirallus australis

Family: Rallidae (Rails, Gallinules, Coots)

Authority: (Sparrman, 1786)

Red List Category

Criteria: A3bce+4bce

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Justification of Red List category
This species's future hold on its mainland range is precarious, with a complex array of threats causing rapid declines resulting in local extinctions. Its situation may be unique in that the species remains numerous on a very large number of islands. Whilst population declines have slowed to an extent over the last ten years, the species is projected to undergo rapid population declines over the next decade based on extrapolation from historic trends, the absence of any change in the threatening processes, and the impact of climate change. It is therefore considered Vulnerable.

Population size: 71000-118000 mature individuals

Population trend: decreasing

Extent of occurrence (breeding/resident): 548,000 km2

Country endemic: yes

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

Recommended citation
BirdLife International (2023) Species factsheet: Gallirallus australis. Downloaded from on 09/12/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from on 09/12/2023.