A grey heron hovers over the reeds on a wetland in the Shahu Scenic Area in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, April 16, 2014. In April, the 80 square kilometers of wetlands in the Shahu Scenic Area in suburban Yinchuan has become home to more than 1.2 million migrating birds. (Xinhua/Peng Zhaozhi)
