Biak Scops-owl Otus beccarii

Family: Strigidae (Typical Owls)

Authority: (Salvadori, 1876)

Red List Category

Criteria: B1b(iii)

Click here for more information about the Red List categories and criteria

Justification of Red List category
This species is restricted to the twin islands of Biak-Supiori but despite the very small distribution the population size is not suspected to approach thresholds for listing as threatened under Criterion C. The population is suspected to be declining due to an ongoing slow rate of forest cover loss. The extent of occurrence, only 3,600 km2, indicates that the species may be at risk, although the population is not severely fragmented and there are parts of the range where the main threat is not believed to apply. But forest loss is ongoing, hence a continuing decline in the area, extent or quality of habitat is estimated. In conjunction with the very small extent of occurrence, the species is considered to approach the thresholds for listing as threatened, meeting Criterion B1b(iii) but not a second subcriterion. Accordingly, Biak Scops-owl is assessed as Near Threatened.

Population size: 15000-45000, 15000-20000 mature individuals

Population trend: decreasing

Extent of occurrence (breeding/resident): 3,600 km2

Country endemic: yes

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

Recommended citation
BirdLife International (2024) Species factsheet: Otus beccarii. Downloaded from https://datazone.birdlife.org/species/factsheet/biak-scops-owl-otus-beccarii on 26/02/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org on 26/02/2024.