People take a pleasure boat to watch black-headed gulls near Caohai Levee of Dianchi Lake in Kunming, capital of southwest China's Yunnan Province, Feb. 6, 2014. Many local citizens come to the levee to view black-headed gulls on Thursday, the last day of the the seven-day break for Spring Festival, or the Chinese Lunar New Year. (Xinhua/Hu Chao)