Histrionicus
Histrionicus is a genus of sea ducks that includes a single species, the Harlequin Duck (Histrionicus histrionicus). These ducks are known for their striking plumage and unique adaptations to harsh marine environments.
Common Names
The Harlequin Duck is commonly called the Harlequin Duck or the "Sea Harlequin." In some regions, it is also known as the "Rock Duck" or "Squaw Duck." The genus name, Histrionicus, comes from the Latin word for "actor" or "mime," referring to the duck's colorful and dramatic plumage.
Characteristics
Harlequin Ducks are relatively small sea ducks, with males typically measuring around 46–51 cm (18–20 in) in length and females slightly smaller. They have a distinctive black and white plumage pattern, with a bright orange-red bill and a patch of white on the cheek. Male Harlequins have a more elaborate and colorful plumage compared to females. They are known for their ability to dive deeply in search of food, reaching depths of up to 20 meters (66 ft).
Environment
Harlequin Ducks inhabit coastal areas with rocky shores and fast-flowing rivers, where they can find their preferred food sources. They are found in the northern hemisphere, with breeding ranges stretching from the Arctic to the Pacific coast of North America and the Atlantic coast of Eurasia. These ducks are often seen in small groups, foraging in shallow waters near rocky shorelines.
Diet
Harlequin Ducks feed primarily on invertebrates, including crustaceans, mollusks, and insects. They also consume small fish and algae. Their diet varies according to their location and the availability of food sources.