Family: Laridae (Gulls, Terns, Skimmers)

Authority: (Gray, 1845)

Red List Category

Criteria: A2bce+3bce+4bce; C2a(ii)

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Justification of Red List category
This species has a small population which has shown very rapid population reductions across its breeding range exceeding 50% within three generations, and this is predicted to continue in the future owing to ongoing threats. It is therefore classified as Endangered.

Population size: 1000-5000 mature individuals

Population trend: decreasing

Extent of occurrence (breeding/resident): 167,000 km²

Country endemic: yes

Attributes
Land-mass type - oceanic island
Realm - Oceanian
IUCN System - Freshwater
IUCN System - Marine