Southern Brown Kiwi Apteryx australis

Family: Apterygidae (Kiwis)

Authority: Shaw, 1813

Red List Category

Criteria: A2be+3be+4be

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Justification of Red List category
Mainland populations of this species are declining by 1-2% per year because of poor recruitment due to predation of chicks, mainly by introduced stoats. The overall trajectory of the large Stewart Island population is unclear because the 2.2% per annum decline in the number of territories in the only study population, at Mason Bay, may be due to predation by introduced feral cats, or, more likely, to habitat change at that particular site. The overall decline of the species warrants Vulnerable status.

Population size: 19900

Population trend: Decreasing

Extent of occurrence (breeding/resident): 39,300 km2

Country endemic: Yes

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

Recommended citation
BirdLife International (2022) Species factsheet: Apteryx australis. Downloaded from on 27/09/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from on 27/09/2022.