Green peafowl are large birds, amongst the largest living galliforms in terms of overall size, though rather lighter-bodied than the wild turkey, and perhaps the longest extant, wild bird in total length. The male is in total length, but this includes its tail covert (or "train") which itself measures . The tail coverts are even longer than those of the male Indian peafowl, but are shorter than those of the arguses. The adult female is around half the total length of the breeding male at in length. It has a relatively large wingspan that averages around and can reach in big males. The green peafowl is capable of sustained flight and is often observed on wing.