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Guide to selected species of:

Acadia National Park

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Common Merganser, male
credit: Mdf/CCSA

       
Duck-like Birds

Common Merganser  Mergus merganser

Family: Ducks and Geese, Anatidae
Audio: Martyn Stewart, © Naturesound.org

Description  ADULT MALE Unmistakable, with bright red-orange bill, glossy green head (looks dark in poor light), white body, and black back. Close view reveals pink wash on white breast and underparts. Eclipse male resembles adult female, although white wing pattern is retained. ADULT FEMALE Orange-red head and neck with shaggy crest and well defined white throat. Body plumage is grayish, palest on breast. Note the reddish orange bill. JUVENILE Resembles adult female, but with duller colors.

Dimensions  Length: 22-27" (56-69 cm)

Habitat  Widespread and common. In summer, favors wooded lakes and rivers; nests in tree holes. Outside breeding season, moves south to ice-free freshwater lakes across region; occasionally found on coasts.

Observation Tips  Ice-bound lake margins often concentrate birds in winter.

Range  Alaska, Southeast, California, Great Lakes, Rocky Mountains, Mid-Atlantic, Texas, Western Canada, Plains, New England, Southwest, Northwest, Florida, Eastern Canada

Voice  Male utters ringing display calls. Otherwise silent.

Discussion  Large, slender-bodied, and elegant diving duck that swims with a stately posture. Dives frequently for fish and invertebrates. In flight, upper surface of male's inner wing is white, except for narrow black line; in female, white is restricted to trailing edge.

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