Backlit by the setting sun, a flock of cranes passes over Poyang Lake in Nanchang, eastern Jiangxi Province. The largest freshwater lake in China is an important wintering site for migratory birds. This year, it has been partially dried up by droughts. Chinese wildlife conservationists have therefore joined forces to help the animals with water and food. In China, the crane is traditionally considered a symbol of wisdom and long life.