.jpg)
The redhead (Aythya americana) is a medium-sized species of diving duck. The scientific name is derived from the Greek aithuia, an unidentified seabird mentioned by authors including Hesychius and Aristotle, and Latin americana, 'of America'. It belongs to the genus Aythya, together with eleven other described species. The redhead and the common pochard form a sister group which together is sister to the canvasback. This redhead was photographed in Central Park, New York.Photograph credit: Rhododendrites