Ring-billed Gull

Larus delawarensis

The Ring-billed Gull is probably the most common gull found in the state. Adapted well to living with humans, it can often be found sitting in parking lots or scavenging at landfills.  The yellow legs and overall size help to distinguish the species from other similarly plumaged gulls found in the state, as does the characteristic black ring around the bill seen in mature birds (such as in the photo to the right).

Habitat: Usually found near lakes, marshes, and large rivers, although they will feed in a wide variety of habitats, including dryland habitats.

Diet: Omnivorous.  Wide variety depending on circumstances.  Includes fish, insects, small mammals, garbage, and grain.  Can be seen in freshly plowed fields foraging for earthworms and grubs. 

Behavior: Very sociable birds, with large groupings often seen in all seasons.  Individual behavior often depends upon local foraging conditions and prey.

Nesting: Mid-May through June

Breeding Map: Breeding bird survey map

Song: High-pitched repeated kiyak.  Call is a sharp ky-ow. 

Migration: Breeds in a scattered locations across Canada and the northern half of the United States.  In winter, found primarily south of Canada and along the coastlines, with populations possibly occurring wherever open water exists.

Similar Species: California Gull, Herring Gull. Mew Gull.  See Identification Tips.

Status: Has been increasing in number, thanks to its ability to live with humans.

Further Information: 1) USGS Patuxent Bird Identification InfoCenter, Ring-billed Gull

2)  Cornell Lab of Ornithology: Ring-billed Gull

3) eNature.com: Ring-billed Gull

Photo Information: July 18th, 2004 - Below Oahe Dam near Pierre, South Dakota - Terry Sohl

Additional Photos: Click on the image chips or text links below for additional, higher-resolution Ring-billed Gull photos.