Fernwren Oreoscopus gutturalis

Family: Acanthizidae (Thornbills)

Authority: (De Vis, 1889)

Red List Category

Criteria: A2bc+3c+4bc

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Justification of Red List category
Recent monitoring data indicate very rapid declines, especially at lower altitudes, of this species in response to climate change. These are expected to affect mid-elevations in the future as the so-called 'escalator to extinction' effect takes hold. For this reason, the species is assessed as Endangered.

Population size: 450000-1000000, 660000

Population trend: Decreasing

Extent of occurrence (breeding/resident): 23,000 km2

Country endemic: Yes

Realm - Oceanic
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2023) Species factsheet: Oreoscopus gutturalis. Downloaded from http://datazone.birdlife.org/species/factsheet/fernwren-oreoscopus-gutturalis on 27/09/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 27/09/2023.