Illustration from National Geographic's Field Guide to the Birds of North America
March 7, 1806, at Fort Clatsop, Oregon.
A large white gull with pearly gray mantle and wings. Gray primaries show a white "window" near the tip of each feather; bill yellow with red spot on lower mandible; eyes light brown or silvery; feet pink. Length: 24-27 in (61-69 cm).
A raucous series of similar notes on one pitch; also soft ga-ga notes when an intruder approaches.
Rocky or sandy beaches, harbors, dumps; open ocean.
Resident from Aleutians and western and southern coasts of Alaska south to northwestern Washington. Winters south along coast to southern California.
Very rare away from salt water. Like other large gulls, this species feeds mainly along the shore.