Egrets are seen at the Xiangshan Forest Park in Nanchang, east China's Jiangxi Province, March 10, 2021. As the temperatures rises, hundreds of returning egrets have settled down at the park to spend their breeding season. (Xinhua/Wan Xiang)

Egrets are seen at the Xiangshan Forest Park in Nanchang, east China's Jiangxi Province, March 10, 2021. As the temperatures rises, hundreds of returning egrets have settled down at the park to spend their breeding season. (Xinhua/Wan Xiang)

An egret flies at the Xiangshan Forest Park in Nanchang, east China's Jiangxi Province, March 10, 2021. As the temperatures rises, hundreds of returning egrets have settled down at the park to spend their breeding season. (Xinhua/Wan Xiang)

An egret rests at the Xiangshan Forest Park in Nanchang, east China's Jiangxi Province, March 10, 2021. As the temperatures rises, hundreds of returning egrets have settled down at the park to spend their breeding season. (Xinhua/Wan Xiang)

An egret rests at the Xiangshan Forest Park in Nanchang, east China's Jiangxi Province, March 10, 2021. As the temperatures rises, hundreds of returning egrets have settled down at the park to spend their breeding season. (Xinhua/Wan Xiang)

An egret is seen at the Xiangshan Forest Park in Nanchang, east China's Jiangxi Province, March 10, 2021. As the temperatures rises, hundreds of returning egrets have settled down at the park to spend their breeding season. (Xinhua/Wan Xiang)