Photo taken on Aug. 23, 2009 shows a flock of Thalasseus bergii at the Bird Island in Zhoushan City, east China's Zhejiang Province.[Hu Sheyou/Xinhua]
![Photo taken on Aug. 23, 2009 shows a flock of Thalasseus bergii at the Bird Island in Zhoushan City, east China's Zhejiang Province.[Hu Sheyou/Xinhua]](http://images.china.cn/attachement/jpg/site1007/20090824/000bcdb95f1d0bfc34f009.jpg "Photo taken on Aug. 23, 2009 shows a flock of Thalasseus bergii at the Bird Island in Zhoushan City, east China's Zhejiang Province.[Hu Sheyou/Xinhua]")