The cattle egret (Bubulcus) is a cosmopolitan genus of heron (family Ardeidae) found in the tropics, subtropics, and warm-temperate zones. According to the IOC bird list, it contains two species: the western cattle egret and the eastern cattle egret, although some authorities regard them as a single species. Despite the similarities in plumage to the egrets of the genus Egretta, it is more closely related to the herons of Ardea. Originally native to parts of Asia, Africa, and Europe, it has undergone a rapid expansion in its distribution and successfully colonized much of the rest of the world in the last century.
Sony A7Rv + Sony FE 200-600mm f/5.6-6.3 G OSS , Iso 800, Exposure Time 1/2000sec , F-stop 7.1