The distinctive Harlequin Duck is a small sea duck with a small bill, short neck, and long tail. Males in breeding plumage are unmistakable with their dark blue color, rufous sides and crown, and striking white patterning on the face, neck, sides, and back. In non-breeding plumage the males are brown with white on the face and a round white spot at each ear. A subtle white shoulder stripe and white on the wings distinguishes the male in non-breeding plumage from the juvenile and the female, which look similar.

 

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