Drake Hen Glossy slate-blue plumage enlivened by white stripes and spots gives the adult male Harlequin Duck a striking appearance. The female resembles a small female Scoter. At a distance, both sexes look black. Flight is swift, with abrupt turns.
Flocks are small and compact.
Ranges both Pacific and Atlantic coast, north from New Jersey and San Francisco. As the organizations that maintain these sites may not be subject to the Official Languages Act, information found on these sites may be presented only in the language in which it was written.