VU
Calayan Rail Aptenorallus calayanensis



Family: Rallidae (Rails, Gallinules, Coots)

Authority: Allen, Oliveros, Espanola, Broad & Gonzalez, 2004

Red List Category

Criteria: D2

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Justification of Red List category
This recently described species is listed as Vulnerable, as it has a very small population and a very small known range. At present it is not known to be declining, but if any evidence of a decline emerges, then it will warrant uplisting to Critically Endangered.



Population size: 2500-4300 mature individuals

Population trend: stable

Extent of occurrence (breeding/resident): 70 km2

Country endemic: yes

Attributes
Realm - Indomalayan
IUCN System - Terrestrial

Recommended citation
BirdLife International (2024) Species factsheet: Calayan Rail Aptenorallus calayanensis. Downloaded from https://datazone.birdlife.org/species/factsheet/calayan-rail-aptenorallus-calayanensis on 06/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 06/12/2024.