Wild geese fly above the Dongwushi Reservoir in Cixian County, north China's Hebei Province, Dec. 9, 2016. Lots of migrant birds have arrived to winter at the Dongwushi Reservoir recently. (Xinhua/Wang Xiao)
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Wild geese fly above the Dongwushi Reservoir in Cixian County, north China's Hebei Province, Dec. 9, 2016. Lots of migrant birds have arrived to winter at the Dongwushi Reservoir recently. (Xinhua/Wang Xiao)
