Peak season of spring bird migration seen in N China's Hebei's wetland
2014-03-18
A flock of migrant birds fly over the Caofeidian Wetland in Tangshan City, north China's Hebei Province, March 12, 2014. Over 20 species of migrant birds flied to Caofeidian Wetland in Hebei recently, marking the peak season of spring bird migration. (Xinhua/Yan Jun)
