Bubulcus Bonaparte, Comp. Rend., xl, p. 722(1855).
Type by taut., Ardea ibis Linn.
This genus is distinguished from Egretta by its shorter bill and feat, whilst the nude portion of the tibia is shorter than the inner toe without claw. The changes in the plumage in the breeding-season are also different, buff hair-like plumes appearing on the the head and back.
One species only is known inhabiting the warmer parts of Europe and Asia and all Africa.