According to the monitoring of the Poyang Lake National Nature Reserve, more than 160,000 migratory birds of 14 categories have arrived at the lake area in Jiangxi Province.
Black-headed gulls fly at the Green Lake Park in Kunming, capital of southwest China's Yunnan Province, Dec. 18, 2016. Every year, black-headed gulls migrate to Kunming to live through the winter. (Xinhua/Lin Yiguang)