Birds 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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Birds 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)
