passerby-b

The picture was taken in the morning on 25 October 2020 at
Shen Zhen Bay Park in Shen Zhen.

Is it an Intermediate Egret or a Swinhoe's Egret? I ruled out the Cattle Egret because on site, the bird is larger than the little egret in vicinity.

passerby-b

Thank you! By referring to the literature again, I found I had confused that all Great Egret should have yellowish green upper legs.