(170217) -- ZHAOTONG, Feb. 17, 2017 (Xinhua) --A keeper feeds black-necked cranes at the Dashanbao state nature reserve of black-necked cranes in Zhaotong, southwest China's Yunnan Province, Feb. 16, 2017. The nature reserve, established in 2003 for the endangered species, has seen increased number of black-necked cranes winter here in recent years. (Xinhua/Hu Chao)
