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
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. (Xinhua/Han Xianpu)
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. (Xinhua/Han Xianpu)