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Ring-billed Gull Larus delawarensis

Ring-billed Gull

Fieldmarks: Mid-sized gull with head-to-tail length of 45-53 cm (18-21 in). Like most gulls, age and seasonal plumages are variable. Most individuals in this region are sub-adults. Legs are flesh-colored. Heavy 'ringed' bill separates this species from other common Western North Atlantic gulls of similar size.

Can occur at any season, but mostly December through March. Fairly common in the Gulf of Mexico, Bermuda, northern Bahamas, Cuba, and Cayman Islands. Rare elsewhere in the Antilles and quite rare in the Lesser Antilles. Rarely, vargrants are reported from Trinidad, Venezuela, and Panama. This species is increasing in numbers and its winter range is expanding.

Natural History: Breeds in North America on inland lakes and praries of central US and Southern Canada. Infrequently seen at sea. Typically found in fields, parking lots, freshwater ponds, and coastal habitats. Requires 3 years to attain adult plumage.

West Indian Breeding Seabird Atlas by Will Mackin and David Lee is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License. Based on work at www.wicbirds.net. Permissions beyond the scope of this license may be available at www.wicbirds.net.

Suggested Citation: Lee, D. S., W. A. Mackin. 2012. Ring-billed Gull. West Indian Breeding Seabird Atlas <http://www.wicbirds.net/rbgu.html>. Last Updated: _____. Date accessed: ______.

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January 12, 2012
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