![](http://www.ecns.cn/hd/2020/01/09/3841511cb3c14768a7b65bf4c04df9d5.jpg)
Swans rest in a river at Bayanbulak Grassland in Hejing county, Northwest China's Xinjiang Uygur autonomous region in January, 2020. The area is known as China's swan nature reserve.(Photo: China News Service/ Xiao Yonghao)
![](http://www.ecns.cn/hd/2020/01/09/083663cf73e54f439430d9ed2242854a.jpg)
Swans rest in a river at Bayanbulak Grassland in Hejing county, Northwest China's Xinjiang Uygur autonomous region in January, 2020. The area is known as China's swan nature reserve.(Photo: China News Service/ Xiao Yonghao)
![](http://www.ecns.cn/hd/2020/01/09/85b6b7d89bdd49d6be6c4643536b6051.jpg)
Swans rest in a river at Bayanbulak Grassland in Hejing county, Northwest China's Xinjiang Uygur autonomous region in January, 2020. The area is known as China's swan nature reserve.(Photo: China News Service/ Xiao Yonghao)
![](http://www.ecns.cn/hd/2020/01/09/48b0a0c3156041e4873822449d0780ca.jpg)
Swans rest in a river at Bayanbulak Grassland in Hejing county, Northwest China's Xinjiang Uygur autonomous region in January, 2020. The area is known as China's swan nature reserve.(Photo: China News Service/ Xiao Yonghao)
![](http://www.ecns.cn/hd/2020/01/09/ee0ea94406614adaad17b7de7be63028.jpg)
Swans rest in a river at Bayanbulak Grassland in Hejing county, Northwest China's Xinjiang Uygur autonomous region in January, 2020. The area is known as China's swan nature reserve.(Photo: China News Service/ Xiao Yonghao)
![](http://www.ecns.cn/hd/2020/01/09/fd735ce9fab545d8ab13cf07296c90e2.jpg)
Swans rest in a river at Bayanbulak Grassland in Hejing county, Northwest China's Xinjiang Uygur autonomous region in January, 2020. The area is known as China's swan nature reserve.(Photo: China News Service/ Xiao Yonghao)
![](http://www.ecns.cn/hd/2020/01/09/3f73b85909124456ab89cac8374ec2c6.jpg)
Swans rest in a river at Bayanbulak Grassland in Hejing county, Northwest China's Xinjiang Uygur autonomous region in January, 2020. The area is known as China's swan nature reserve.(Photo: China News Service/ Xiao Yonghao)