
Fledgings tussle in the nest at the Bird Island of the Ningxia Sand Lake in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, April 29, 2012. The Bird Island of the Ningxia Sand Lake, covering an acreage of 4,247 hectares, is home to about 200 species of birds. (Xinhua/Liu Quanlong)