Greater Black-Backed Gull by San Francisco bay, California, United States of America

1 bird american birds grey plumage north america san francisco wildlife seabird usa winged aves avian avians beak bill birds of a feather color daytime feathers natural world nature one bird outside perch perched perching profile rest resting sea bird seabirds stock image stock photo stock photograph vertical webbed feet wildlife photography wildlife stock wings wild animal wild animals wildlife safari safari safaris safari destinations safari destination nature reserve one animal side view color image colour conservation