(Anas sibilatrix)
The Chiloé wigeon has a body length of 46 to 56 cm (18 to 22 in) and a wingspan of 75 to 86 cm (30 to 34 in).The wing length is about 25 cm (9.8 in) and the weight is approximately 800 g (28 oz). This bird has an iridescent green-blue cap on its head,and a bluish gray bill with a black tip.The cheeks and forehead are white,the eyes are dark brown,and there is a white auricular patch.The neck and occipital part of the head are black.The breast is barred black and white and the plumage of the wings is gray and white.The flanks of males are rust colored,and light brown on females.The legs and feet are gray.