Many birds recently gathered at Tianhewan National Wetland Park in Pingluo county, Shizuishan city, Ningxia Hui autonomous region. Their flocks up against the colors of the wetland make for fantastic photos.
Due to a decrease in water flow velocity, a large amount of sediment has accumulated, forming a wetland ecosystem in the Yellow River mudflat in Ningxia. Every year, 180 species of migratory birds stay here during their spring and autumn migrations.