A couple pose for wedding photos on a dam in Kunming, capital of southwest China's Yunnan Province, Dec. 23, 2010. Tens of thousands of black-headed gulls fly to Kunming from northern China every winter in the past 32 years. (Xinhua/Lin Yiguang)
A couple pose for wedding photos on a dam in Kunming, capital of southwest China's Yunnan Province, Dec. 23, 2010. Tens of thousands of black-headed gulls fly to Kunming from northern China every winter in the past 32 years. (Xinhua/Lin Yiguang)