Egrets are seen at the Heihe wetland of Gaotai County in Zhangye City, northwest China's Gansu Province, March 14, 2018. The birds population there has increased thanks to the efforts that have been made to protect the environment of the wetland in the city. (Xinhua/Fan Peishen)
Birds population increases due to wetland protection in NW China's Gansu
Source: Xinhua| 2018-03-15 10:12:57|Editor: Liangyu