Over 1,500 black-necked cranes arrive in Guizhou to live through winter

Black-necked cranes fly over the Caohai National Nature Reserve in Weining, southwest China's Guizhou Province, Jan. 2, 2019. More than 1,500 black-necked cranes have arrived here to live through winter. [Photo by Han Xianpu/xinhuanet.com]