![Thousands of migrant birds gather at wetland for rest in Tianjin(3/6)](http://www.ecns.cn/hd/2017/11/16/5b4a0e17d04f4eea9b736df925e87986.jpg)
Migrant birds rest at the Beidagang Wetland in Tianjin, north China, Nov. 15, 2017. Thousands of migrant birds gathered at the wetland for rest. (Xinhua/Yue Yuewei)
Migrant birds rest at the Beidagang Wetland in Tianjin, north China, Nov. 15, 2017. Thousands of migrant birds gathered at the wetland for rest. (Xinhua/Yue Yuewei)