
Egrets are seen at the Ulunggur Lake National Wetland Park in Altay, northwest China's Xinjiang Uygur Autonomous Region, June 9, 2019. (Xinhua/Ding Lei)

A long-feet snipe forages at the Ulunggur Lake National Wetland Park in Altay, northwest China's Xinjiang Uygur Autonomous Region, June 9, 2019. (Xinhua/Ding Lei)

Wild birds fly over the Ulunggur Lake National Wetland Park in Altay, northwest China's Xinjiang Uygur Autonomous Region, June 9, 2019. (Xinhua/Ding Lei)

An egret is seen at the Ulunggur Lake National Wetland Park in Altay, northwest China's Xinjiang Uygur Autonomous Region, June 9, 2019. (Xinhua/Ding Lei)