HARLEQUIN DUCK 
155. Histrionicus histrionicus. 17 in. 
Male very oddly and handsomely marked, as shown; 
female blackish-brown, lighter below and with a whitish 
spot before and one behind each eye. During the win- 
ter, they are seen in flocks off the coast, from Maine 
and sometimes from Long Island Scund northward. In 
summer, they are usually found only in pairs along 
rivers or creeks, and in the Rocky Mountains they fre- 
quent the turbulent streams that are the homes of the 
Water Ouzel. When swimming, Harlequins sit high in 
the water, but they are able to get under the surface 
with the greatest of speed. 
Notes.—A rapidly uttered, clattering whistle. 
Nest.—On the ground, in erevices under rocks, the 
hollow being well lined with down; also said to nest 
in hollow trees; their 5 to 8 eggs are greenish-buff and 
measure 2.30 x 1.60; June. 
Range.—Breeds from New Brunswick north and north- 
west to Alaska and the Arctic Ocean, and south in the 
Rockies to Colorado; winters south to the Middle States 
and Calif. 
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