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Red-billed gulls fly over Dianchi Lake in Kunming, capital of southwest China's Yunnan Province, Nov. 14, 2018. Red-billed gulls fly to Kunming for warmer weather to live through the winter. (Xinhua/Lin Yiguang)
Red-billed gulls fly over Dianchi Lake in Kunming, capital of southwest China's Yunnan Province, Nov. 14, 2018. Red-billed gulls fly to Kunming for warmer weather to live through the winter. (Xinhua/Lin Yiguang)