The Belcher's gull (Larus belcheri), also known as the or band-tailed gull, is a gull found along the Pacific coast of South America. It formerly included the very similar Olrog's gull as a subspecies. It is a medium-sized gull with a blackish mantle, white head and underparts, a black band in the otherwise white tail, and a yellow bill with a red and black tip. Non-breeding adults have a blackish head and a white eye-ring.
The name of this bird commemorates the British explorer Sir Edward Belcher.
- Jaramillo, A., Burker, P., & Beadle, D. (2003). Birds of Chile. Christopher Helm. ISBN 0-7136-4688-8
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