An egret and fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings. (Photos: Xinhua)

An egret and fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

Egrets and fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

An egret rests on a branch at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

Egrets and fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

An egret and fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

Egrets fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

An egret and fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

An egret and fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

An egret and fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

Egrets and fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

An egret fledging spreads its wings at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

An egret and fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

Egrets and fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

An egret and fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

An egret and fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.

Egrets and fledgings are seen at the Xiangshan forest park in Nanchang, east China's Jiangxi Province, May 21, 2019. Ecological protection of the Xiangshan forest park has created a friendly environment for egrets to rest and reproduce their offsprings.