Seagulls (or common gull) swimming peacefully in spring.
Nikon D3X and Nikkor 300mm 2.8 at f/8, 1/320sec and ISO 200.
This image may be licensed at istockphoto.
The Western Gull, Larus occidentalis, is a large white-headed gull that lives on the western coast of North America. It was previously considered conspecific, the same species, with the Yellow-footed Gull (Larus livens) of the Gulf of California. The Western Gull ranges from British Columbia, Canada to Baja California, Mexico, and because of its convenient colonies on the coast of California it is well studied. Despite being a well-known bird species on the West Coast of the US, it is of some slight conservation concern given its restricted range (for a gull). The Western Gull is a large gull, around 60 cm long with a white head and body, and gray wings. It has a yellow bill with a red subterminal spot (this is the small spot near the end of the bill that chicks peck in order to stimulate feeding). It closely resembles the Slaty-backed Gull (Larus schistisagus). In the north of its range it forms a hybrid zone with its close relative the Glaucous-winged Gull (Larus glaucescens). Western gulls take approximately four years to reach their full plumage, their layer of feathers and the patterns and colors on the feathers. The Western Gull typically lives about 15 years. (Wikipedia)