Baikal Teal

The Baikal Teal (Sibirionetta formosa) is a duck that breeds in eastern Russia and winters in East Asia. 
Description
this duck is slightly larger and longer-tailed than the common teal. The breeding male is unmistakable, with a green nape, yellow and black auriculars, neck, and throat. It has a dark crown, and its breast is light brown with dark spots. It has long dropping dark scapulars, and its grey sides are set off on the front and rear with white bars.
Distribution and habitat
It breeds within the forest zone of eastern Siberia from the Yenisey basin eastwards to Kamchatka, northern Koryak, eastern Magadan Oblast, northern Khabarovsk Krai, southeastern and northern Sakha east central Irkutsk Oblast, and northern Krasnoyarsk Krai. It is a migratory species, wintering in South Korea, Japan, Taiwan, and China, from Beijing down the coast to the Vietnam border, and west to Yunnan then north to Chongqing and Henan.