Olrog's Gull Larus atlanticus

Family: Laridae (Gulls, Terns, Skimmers)

Authority: Olrog, 1958

Red List Category

Criteria: B2b(iii)

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Justification of Red List category
This species has a highly restricted breeding range at a small number of colonies.  Numbers breeding annually appear to fluctuate, but there is currently no evidence of a continuing decline, therefore the species has been reclassified as Near Threatened.  Potential threats to breeding sites remain, and any evidence of declines would result in reclassification in a higher threat category.

Population size: 9800-15600

Population trend: Stable

Extent of occurrence (breeding/resident): 209,000 km2

Country endemic: No

Land-mass type - continent
Realm - Neotropical
IUCN Ecosystem -- Marine biome

Recommended citation
BirdLife International (2023) Species factsheet: Larus atlanticus. Downloaded from http://datazone.birdlife.org/species/factsheet/olrogs-gull-larus-atlanticus on 03/06/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 03/06/2023.