Natural History: The California Gull is omnivorous, eating everything from garbage to invertebrates. It roosts in large groups along shorelines and landfills. It nests in open areas on islands between April and August.
General Distribution: In the Presidio, this species is found in the ocean, bays, ponds, tidal sand and rocky areas, and around piers, pilings, and lawns.
Frequency: This species is considered common in the summer, fall, and winter months.
Identifying Characteristics: This gull can be distinguished by its medium-gray color, black wing tips with white spots and greenish legs. It displays a red spot on its lower bill and in winter black as well.