Harlequin Duck
 The Harlequin Duck (Histrionicus histrionicus) is a small sea duck. It takes its name from Arlecchino Arlequin in Italian 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.