Mick Hartley

A flock of Baikal Teal over Geumgang Lake in Gunsan, South Korea:

[Photo: AP/Yonhap]

From Wiki:

The Baikal Teal (Anas formosa), also called the Bimaculate Duck or Squawk Duck, is a dabbling duck that 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 Japan, South Korea, Taiwan, northern and eastern China, from Beijing down the coast to the Vietnam border, and west to Yunnan then north to Chongqing and Henan. Molecular and behavioral data suggest that it has no close relatives among living ducks and should be placed in a distinct genus…

So now you know.