|A pair of ducks din Switzerland|
The Mandarin Duck (Aix galericulata) breeds in eastern Siberia, China and Japan and winters in southern China and Japan. There is a small free-flying population in Britain stemming from the release captive bred ducks.
In full plumage, the male has a pair of "sail" feathers that are raised vertically above the back, a crest of orange and cream feathers, and a broad white eye-stripe that is bounded above and below by darker feathers. The female is duller in color and has an overall grey appearance marked by a curving white stripe behind the eye and a series of white blotches on the underparts. In flight, both sexes display a bluish-green iridescent speculum.