Bubulcus ibis belongs to the genus Heron of the cosmopolitan range and is found in the tropics, subtropics and all other hotspots. They can be seen mostly with cattle. They get their name from their ability to eat insects found on the grass and floors around animals. The appearance of Bubulcus ibis as a single group is known as the stampede of egrets. Although found mainly in North America, South America, Europe, Africa and Australia, they do not stay permanently in these regions. They roam in search of wetlands, swamps, meadows and grasslands. n 1877, it somehow reached the northeastern part of South America. They arrived in the United States in 1941 and began to spread there. By 1953, they had colonized there. Fifty years later, a large group of herons settled in North America. The oldest Bubulcus ibis is reported to be 17 years old.