Family: Laridae (Gulls, Terns, Skimmers)

Authority: (Philippi & Landbeck, 1861)

Red List Category

Criteria: C2a(i)

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Justification of Red List category
This species is listed as Endangered because it is estimated to have a very small population which is undergoing continuing declines owing to habitat loss and disturbance on its breeding grounds. It is also restricted to a very small area when breeding and these breeding grounds remain highly threatened.

Population size: 600-1700 mature individuals

Population trend: decreasing

Extent of occurrence (breeding/resident): 67,600 km²

Country endemic: no

Attributes
Land-mass type - continent
Realm - Neotropical
IUCN System - Terrestrial
IUCN System - Marine