Family: Acrocephalidae (Reed-warblers)

Authority: (Sharpe, 1900)

Red List Category

Criteria: B1ab(iii)+2ab(iii)

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Justification of Red List category
This species is listed as Endangered because it has a very small range within which its habitat is likely to be continuing to decline in extent and quality as a result of development, encroachment of an invasive plant, and predation by introduced mammals.

Population size: 250-2000 mature individuals

Population trend: decreasing

Extent of occurrence (breeding/resident): 6 km²

Country endemic: yes

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