Caohai, Weining county, in winter

Various birds, such as grey cranes, red-crowned cranes and black-winged stilts, hover over Caohai Lake in Weining, Guizhou province.

Caohai Lake of Weining, known as the "Plateau Pearl",offers a picturesque landscape.

Some lucky visitors may catch sight of the black-crowned crane, which is considered the most precious bird in China.