Definition that contains casmerodius albus
- egretta albus a common egret of the genus Egretta found in America; it is a variety of the Old World white egret Casmerodius albus
- great white heron a common egret of the genus Egretta found in America; it is a variety of the Old World white egret Casmerodius albus
- american egret a common egret of the genus Egretta found in America; it is a variety of the Old World white egret Casmerodius albus