An egret is seen at Fenhe river wetland park in Taiyuan, north China's Shanxi Province, Dec. 28, 2021.(Xinhua/Yang Chenguang)

Egrets are seen at Fenhe river wetland park in Taiyuan, north China's Shanxi Province, Dec. 28, 2021.(Xinhua/Yang Chenguang)

An egret is seen at Fenhe river wetland park in Taiyuan, north China's Shanxi Province, Dec. 28, 2021.(Xinhua/Yang Chenguang)

Egrets are seen at Fenhe river wetland park in Taiyuan, north China's Shanxi Province, Dec. 28, 2021.(Xinhua/Yang Chenguang)

An egret is seen at Fenhe river wetland park in Taiyuan, north China's Shanxi Province, Dec. 28, 2021.(Xinhua/Yang Chenguang)

Egrets are seen at Fenhe river wetland park in Taiyuan, north China's Shanxi Province, Dec. 28, 2021.(Xinhua/Yang Chenguang)

Egrets are seen at Fenhe river wetland park in Taiyuan, north China's Shanxi Province, Dec. 28, 2021.(Xinhua/Yang Chenguang)

An egret is seen at Fenhe river wetland park in Taiyuan, north China's Shanxi Province, Dec. 28, 2021.(Xinhua/Yang Chenguang)

An egret forages at Fenhe river wetland park in Taiyuan, north China's Shanxi Province, Dec. 28, 2021.(Xinhua/Yang Chenguang)

An egret is seen at Fenhe river wetland park in Taiyuan, north China's Shanxi Province, Dec. 28, 2021.(Xinhua/Yang Chenguang)

An egret forages at Fenhe river wetland park in Taiyuan, north China's Shanxi Province, Dec. 28, 2021.(Xinhua/Yang Chenguang)

来源：Xinhua