Birdwatching activity held in Shahu Lake scenic spot in NW China's Ningxia

Photo taken on April 21, 2018 shows a heron flying on Shahu Lake, northwest China's Ningxia Hui Autonomous Region. A birdwatching activity was held in the scenic spot of Shahu Lake, where thousands of migratory birds gather here for rest and reproduction from March to October every year. (Xinhua/Wang Peng)