Crested arguses are large and spectacular peafowl-like birds in the genus Rheinardia of the pheasant family.

Peafowl is a common name for two bird species of the genus Pavo and one species of the closely related genus Afropavo within the tribe Pavonini of the family Phasianidae. Male peafowl are referred to as peacocks, and female peafowl are referred to as peahens.