Egrets play in large groups in the wetlands of the Yellow River in Yinchuan, Ningxia Hui autonomous region. [Photo by Li Jing/Provided to chinadaily.com.cn]
According to environmental authorities, there are around 200 lakes, swamps and other wetland areas in Yinchuan, totaling about 500 square kilometers. The improving natural environment has made it an important habitat and transition point for the birds.