Intermediate egret, median egret, smaller egret or medium egret 
(Cò ngàng nhỏ, Ardea intermedia)
Some authorities classify the intermediate egret in its own monotypic genus, Mesophoyx, while others place it with the smaller egrets in Egretta.

The medium egret (Ardea intermedia), median egret, smaller egret or intermediate egret, is a medium-sized heron.

The genus name comes from the Latin word ardea meaning "heron".