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A staff member feeds black-headed gulls by the bank of Dianchi Lake in Kunming, southwest China's Yunnan Province, Feb. 4, 2020. As many parks close due to the outbreak of pneumonia caused by novel coronavirus, local authorities arrange staff to feed black-headed gulls twice a day to make sure they overwinter safely. （Photo: China News Service/ Liu Ranyang）
A staff member feeds black-headed gulls by the bank of Dianchi Lake in Kunming, southwest China's Yunnan Province, Feb. 4, 2020. As many parks close due to the outbreak of pneumonia caused by novel coronavirus, local authorities arrange staff to feed black-headed gulls twice a day to make sure they overwinter safely. （Photo: China News Service/ Liu Ranyang）
A staff member feeds black-headed gulls by the bank of Dianchi Lake in Kunming, southwest China's Yunnan Province, Feb. 4, 2020. As many parks close due to the outbreak of pneumonia caused by novel coronavirus, local authorities arrange staff to feed black-headed gulls twice a day to make sure they overwinter safely. （Photo: China News Service/ Liu Ranyang）
A staff member feeds black-headed gulls by the bank of Dianchi Lake in Kunming, southwest China's Yunnan Province, Feb. 4, 2020. As many parks close due to the outbreak of pneumonia caused by novel coronavirus, local authorities arrange staff to feed black-headed gulls twice a day to make sure they overwinter safely. （Photo: China News Service/ Liu Ranyang）
A staff member feeds black-headed gulls by the bank of Dianchi Lake in Kunming, southwest China's Yunnan Province, Feb. 4, 2020. As many parks close due to the outbreak of pneumonia caused by novel coronavirus, local authorities arrange staff to feed black-headed gulls twice a day to make sure they overwinter safely. （Photo: China News Service/ Liu Ranyang）
A staff member feeds black-headed gulls by the bank of Dianchi Lake in Kunming, southwest China's Yunnan Province, Feb. 4, 2020. As many parks close due to the outbreak of pneumonia caused by novel coronavirus, local authorities arrange staff to feed black-headed gulls twice a day to make sure they overwinter safely. （Photo: China News Service/ Liu Ranyang）
