Ring-billed Gull
Size: 18-21 inches
The black ring around the yellow bill of adult birds makes its name easy to
remember. This bird can be found all over the Bay Area in parks, shopping
center parking lots, fast food restaurants, as well as along our coast and
waterways.
Food: fish, insects, worms, rodents, eggs, reptiles, garbage
Nest: scrape on ground
In Marin: most leave in summer to breed
Young gulls do not have a ring on the bill.