Black swans are seen in the Guanshan Lake Park in Guiyang City, southwest China's Guizhou Province, Aug. 1, 2022. (Xinhua/Liu Xu)
Tourists view black swans in the Guanshan Lake Park in Guiyang City, southwest China's Guizhou Province, Aug. 1, 2022. (Xinhua/Liu Xu)
An egret flies over the Guanshan Lake Park in Guiyang City, southwest China's Guizhou Province, Aug. 1, 2022. (Xinhua/Liu Xu)