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The Indian peacock has iridescent blue and green plumage, mostly metallic blue and green, but the green peacock has green and bronze body feathers.In both species, females are as big as males, but lack the train and the head ornament.The peacock "tail", known as a "train", consists not of tail quill feathers, but highly elongated upper tail coverts.
Both sexes of all species have a crest atop the head.
The Indian peahen has a mixture of dull grey, brown, and green in her plumage.
Peafowl is a common name for three species of birds in the genera Pavo and Afropavo of the Phasianidae family, the pheasants and their allies.
Male peafowl are referred to as peacocks, and female peafowl as peahens.
Hybrids between Indian and Green peafowl are called Spaldings, after the first person to successfully hybridise them, Mrs. Unlike many hybrids, spaldings are fertile and generally benefit from hybrid vigor; spaldings with a high-green phenotype do much better in cold temperatures than the cold-intolerant green peafowl while still looking like their green parents.
Plumage varies between individual spaldings, with some looking far more like green peafowl and some looking far more like blue peafowl, though most visually carry traits of both.
These feathers are much shorter than those of the Indian and green species, and the ocelli are much less pronounced.
Females of the Indian and African species are dull grey and/or brown.
Such structural colouration causes the iridescence of the peacock's hues.
Interference effects depend on light angle rather than actual pigments.