![](http://www.ecns.cn/hd/2021/12/03/25f5f00ebd914daf9b92083e9f150403.jpg)
Waterfowls forage at Beichuan River Wetland Park in Xining, northwest China's Qinghai Province, Dec. 2, 2021. (Photo: China News Service/Ma Mingyan)
![](http://www.ecns.cn/hd/2021/12/03/2d9990f0209240b1a1fcdc6ae54ed9b2.jpg)
Waterfowls forage at Beichuan River Wetland Park in Xining, northwest China's Qinghai Province, Dec. 2, 2021. (Photo: China News Service/Ma Mingyan)
![](http://www.ecns.cn/hd/2021/12/03/75db94173eaf433a89b70dc6aaf24a55.jpg)
Waterfowls forage at Beichuan River Wetland Park in Xining, northwest China's Qinghai Province, Dec. 2, 2021. (Photo: China News Service/Ma Mingyan)
![](http://www.ecns.cn/hd/2021/12/03/32f899ffafe04cc199ca0b714ede3698.jpg)
Waterfowls forage at Beichuan River Wetland Park in Xining, northwest China's Qinghai Province, Dec. 2, 2021. (Photo: China News Service/Ma Mingyan)