One of the most vocal of ducks; drakes have a loud pleasant caloo, caloo, constantly heard.
Harlequin
Length—17 in.
Weight—1½ lbs.
Drake Eclipse Drake
Hen
Glossy slate-blue plumage enlivened by white stripes and spots give the adult male harlequin 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 coasts, north from New Jersey and San Francisco. Uncommon.