Family: Acrocephalidae (Reed-warblers)

Authority: (Rothschild, 1892)

Red List Category

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

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Justification of Red List category
This species has a very restricted range on the islands of Nihoa and Laysan, where habitat degradation is ongoing. These populations are at risk of extinction through exposure to stochastic factors such as severe climatic events or the introduction of invasive species. It is therefore assessed as Endangered.

Population size: 250-999 mature individuals

Population trend: unknown

Extent of occurrence (breeding/resident): 2,100 km²

Country endemic: yes

Attributes
Land-mass type - oceanic island
Realm - Oceanian
IUCN System - Terrestrial