Family: Corvidae (Crows and jays)

Authority: Gray, 1859

Red List Category

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Justification of Red List category

This species has a large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km² combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Although the species is thought to be declining, it does not meet or approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified and hence the species does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Population size: unknown

Population trend: decreasing

Extent of occurrence (breeding/resident): 447,000 km²

Country endemic: yes

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