Subfamilies Meleagridinae and Tetraoninae are sometimes classified as distinct families: Meleagrididae and Tetraonidae. The family Numididae (guineafowls) has also sometimes been included as a subfamily.
The Phasianidae (exclusive of true Phasianus) are highly characteristic of this region, as are likewise certain genera of barbets (Megalaeraa), parrots (Palaeornis), and crows (Dendrocitta, Urocissa and Cissa).
The genus Meleagris is considered to enter into the family Phasianidae, in which it forms a subfamily Meleagrinae, peculiar to North and Central America.
All these birds are beautifully figured in Elliot's Monograph of the Phasianidae, from drawings by Wolf.