Migrant birds fly over the Beidagang Wetland in Tianjin, north China, Nov. 15, 2017. Thousands of migrant birds gathered at the wetland for rest.
(Xinhua/Yue Yuewei)
(Xinhua/Yue Yuewei)
(Xinhua/Yue Yuewei)
(Xinhua/Yue Yuewei)
(Xinhua/Yue Yuewei)
(Xinhua/Yue Yuewei)
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Migrant birds fly over the Beidagang Wetland in Tianjin, north China, Nov. 15, 2017. Thousands of migrant birds gathered at the wetland for rest.