Large numbers of migratory birds, including swans, red ducks, spotted geese and grey cranes, have returned to the wetland in Swan Lake in Bayinbuluk, northwest China’s Xinjiang Uyghur autonomous region. After the spring equinox, when the ice and snow began to melt, the wetland witnessed the peak season for migratory birds. The birds forage and frolic in the wetland, forming a beautiful picture on the plateau.