![](http://www.ecns.cn/hd/2023/03/24/b0090bce9eba4c55803e2df2aae7fc4d.jpg)
Migratory birds fly over Bayanbulak Wetland in northwest China's Xinjiang Uyghur Autonomous Region in Spring. (Photo/China News Service)
Large numbers of migratory birds, including swans, red ducks, spotted geese and grey cranes returned to the wetland in Bayanbulak when snow began to melt.
![](http://www.ecns.cn/hd/2023/03/24/ccfb1bfe20cd42f797b8bf07fb32b7ad.jpg)
Migratory birds fly over Bayanbulak Wetland in northwest China's Xinjiang Uyghur Autonomous Region in Spring. (Photo/China News Service)
![](http://www.ecns.cn/hd/2023/03/24/34f177bc440547cf8bf091acb578e9c8.jpg)
Migratory birds rest at Bayanbulak Wetland in northwest China's Xinjiang Uyghur Autonomous Region in Spring. (Photo/China News Service)
![](http://www.ecns.cn/hd/2023/03/24/830ce5b2df18437e8921b842f42cae4a.jpg)
Swans rest at Bayanbulak Wetland in northwest China's Xinjiang Uyghur Autonomous Region in Spring. (Photo/China News Service)
![](http://www.ecns.cn/hd/2023/03/24/43f47d18765f4a8e95448fff40928c20.jpg)
Swans fly over Bayanbulak Wetland in northwest China's Xinjiang Uyghur Autonomous Region in Spring. (Photo/China News Service)