The harlequin duck (Histrionicus histrionicus) is a small colorful sea duck. Its name comes from "histrio", in Latin and means actor.
They have 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. Harlequin Ducks prefer turbulent water, both in their breeding habitat, which is along fast-moving mountain streams, and in their wintering habitat, which is along rocky coastlines.
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