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151. Clangula clangula americana. 20 inches

These are handsome ducks, known as “Whistlers,” from the noise of their wings when flying, and also “Great-heads,” because of the puffy crest. The head is greenish black with a large round white spot in front of and a little below the eye. The rest of the plumage is black and white.

Nest.– Built in the hollows of trees near the water, lining the cavity with fine grasses, moss or leaves and then lining the nest with feathers, in which they place from 6 to 10 eggs of a grayish color (2.30 × 1.70).

Range.– North America, breeding from Alaska south to the most northern of United States. Winters to southern California and the Gulf Coast.