Harlequin Duck (Histrionicus histrionicus) - Birds Around Me 0274
The Harlequin Duck (Histrionicus histrionicus) is one of the most striking and colorful sea ducks of the northern hemisphere. Small and compact, measuring about 40–47 cm in length, it is instantly recognizable by its bold plumage and lively behavior in turbulent waters. Female Harlequin Duck (Histrionicus histrionicus) Iceland, July 2025 Adult males are particularly spectacular. Their plumage is a dramatic mix of slate blue, chestnut, and white, with bold spots and stripes that resemble the costume of a harlequin clown—hence the name. Females, by contrast, are more subdued, with brown plumage and three pale facial spots that help distinguish them from other sea ducks. Harlequin Ducks breed in fast‑flowing rivers and streams across northern North America, Greenland, and Iceland, as well as parts of eastern Russia. Nests are usually hidden among rocks or vegetation close to water. After breeding, they migrate to winter along rocky coastlines of the North Pacific an...