White cranes fly over the Poyang Lake in Duchang County, east China's Jiangxi Province, Feb. 18, 2016. Migratory birds prepared to fly back to the north after spending winter here. (Photo: Xinhua/Yang Fan)
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White cranes fly over the Poyang Lake in Duchang County, east China's Jiangxi Province, Feb. 18, 2016. Migratory birds prepared to fly back to the north after spending winter here. (Photo: Xinhua/Yang Fan)
