Common Loon

General Description

Common Loons are large water birds with thick necks and sharp bills. In breeding plumage, both sexes have striking black heads with white collars, white breasts, and black backs with white checkering. Adults in non-breeding plumage are brownish gray with white throats and breasts, partial white collars, and white around the eyes. Under-parts are white in all plumages. Juvenile plumage is similar to non-breeding.

Common Loons are Common in Western Washington from September though May and Uncommon June-August.

Habitat

In the breeding season, Common Loons can be found on large secluded lakes (at least 49 acres in size) with plenty of room for takeoff, deep inlets and bays, and a good supply of small fish. These lakes can be in forested areas in mountains or lowlands. Islands, logs, and floating debris attract nesting loons. In winter, Common Loons are usually found on salt water, typically in shallow areas close to shore. They occasionally winter on fresh water.

Behavior

In winter, Common Loons are solitary while feeding, but they congregate in loose flocks at night. Before diving, they sometimes swim along the surface with heads partly submerged, looking for prey. When swimming under water, they use only their feet for propulsion.

Non Breeding Plumage

Breeding Plumage