Phylogeny of the Galliformes based a study by De Chen and collaborators published in 2021. The number of species are from the list maintained by Frank Gill, Pamela Rasmussen and David Donsker on behalf of the International Ornithologists' Union. (en)
Clockwise from top left: Indian peafowl , red junglefowl , golden pheasant , red-legged partridge , Gunnison grouse , wild turkey , great curassow , helmeted guineafowl (en)