- American egret, great white heron, Egretta albus - the common American egret; a variety of the Old World white egret Casmerodius albus
--1 is a kind of egret
--1 is a member of Egretta, genus Egretta - great white heron, Casmerodius albus - widely distributed Old World white egret
--2 is a kind of egret
--2 is a member of Casmerodius, genus Casmerodius; Egretta, genus Egretta - great white heron, Ardea occidentalis - large white heron of Florida and the Florida Keys
--3 is a kind of heron
--3 is a member of Ardea, genus Ardea