Two swans play with each other at Pinglu Yellow River wetland in Yuncheng, north China's Shanxi Province, Jan. 29, 2008. Thousands of swans which flied here to get throught the winter enjoy sunshine after snowfall.(Xinhua Photo/Xue Jun)
Several swans fly over Pinglu Yellow River wetland in Yuncheng, north China's Shanxi Province, Jan. 29, 2008. Thousands of swans which flied here to get throught the winter enjoy sunshine after snowfall.(Xinhua Photo/Xue Jun)
A flock of swans fly over Pinglu Yellow River wetland in Yuncheng, north China's Shanxi Province, Jan. 29, 2008. Thousands of swans which flied here to get throught the winter enjoy sunshine after snowfall.(Xinhua Photo/Xue Jun)
