# UKBirds

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## Harlequin Duck

### Histrionicus histrionicus

The Harlequin Duck is a small sea duck. It takes its name from Arlecchino, Harlequin in French, a colourfully dressed character in Commedia dell'arte. The species name comes from the Latin word "histrio", "actor". In North America it is also known as Lords and ladies. Other names include painted duck, totem pole duck, rock duck, glacier duck, mountain duck, white-eyed diver, squeaker and blue streak.
Adult males are slate blue with chestnut sides and white markings including a white crescent at the base of the bill. Adult females are less colourful, with brownish-grey plumage and a white patch on the head around the eye. Both adults have a white ear-patch.