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Black-headed gulls are seen at the Yeya (Wild duck) Lake Wetland Reserve in the suburb Yanqing District of Beijing, capital of China, Nov. 15, 2016. According to a report published by the reserve on Nov. 5, 302 kinds species have been recorded in the wetland, the largest such reserve in the capital, seven of which were newly in 2016. (Xinhua/Li Xin)
