Green PeafowlThe Indian Peafowl is monotypic, while the Green Peafowl has 3 subspecies, P. muticus spicifer, P. m. imperator and the nominate P. m. muticus.[2] The two species are largely allopatric but will hybridize in captivity.

While the form of Green Peafowl in Yunnan is not separated taxonomically, it differs in a few aspects from other forms, particularly in its forest-dwelling habits, an "odd, monal-like bill," a curiously long hind toe and longer, more slender wings (K. B. Woods in litt. 2000) [3]. Some have suggested this is a new subspecies.

Some pheasant breeders have suggested that the Green Peafowl may have more subspecies.[4][5]

Peafowl have sometimes been included in a distinct family from Pheasants [6].