The upper tail coverts, which are long and capable of erection, are each marked with a black spot bordered by concentric bands of brilliant blue, green, and golden colours. The common domesticated species is pavo cristatus. The Javan peacock (P. Muticus) is more brilliantly coloured than the common species.
Origin: OE. Pecok. Pea- in this word is from AS. Pea, pawa, peacock, fr. L. Pavo, prob. Of Oriental origin; cf. Gr, Per. Taus, tawus, Ar. Tawus. See Cock the bird.