Skimmers, Noddies, Terns, and Gulls
Olrog’s Gull
Larus atlanticus
- Family
- Skimmers, Noddies, Terns, and Gulls (Laridae)
- Order
- Charadriiformes
Overview
Olrog's gull (Larus atlanticus) is a species of gull found along the Atlantic coast of southern Brazil, Uruguay, and northern Argentina. It was formerly considered a subspecies of the very similar L. belcheri. It is a large gull with a black back and wings, white head and underparts, a black band in the otherwise white tail, and a yellow bill with a red and black tip. Nonbreeding adults have a blackish head and a white eye ring.
Summary from Wikipedia, available under CC BY-SA 4.0.
Range and habitat
Breeds coastal southern Buenos Aires and Chubut provinces (east-central Argentina); some winter to coasts of southeastern Brazil.
Range description: AviList Global Avian Checklist.
Continents
Sources and further reading
- Wikipedia: Olrog's gull
- eBird: sightings, maps and photos
- xeno-canto: sound recordings
- Birds of the World: full species account (subscription)
- BirdLife DataZone: status and threats
- IUCN Red List (threat status)
- AviList global checklist (taxonomy)
Last updated September 29, 2026.
