The mandarin duck (Aix galericulata) is a medium-sized duck, at 41–49 cm, the males are elaborately coloured. The mandarin duck is among the more diminutive types of waterfowl, with a shorter height and smaller overall body size. The male's breast is purple with two vertical white bars, the flanks ruddy, and he has two orange feathers at the back (large feathers that stick up similar to boat sails)