Peacock or peafowl, large bird of the genus Pavo, in the pheasant family, (Pavo cristatus), During courtship the crested male common peacock displays his elongated upper tail coverts - a magnificent green and gold erectile train adorned with blue-green eyes - before the duller-plumaged peahen. Male peacocks display their iridescent feathers for prospective female mates. Females may check out the feathers of a number of different males before deciding on a suitor. The length and quality of a ma