<P> 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 . These feathers are marked with eyespots , best seen when a peacock fans his tail . 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 . The female also displays her plumage to ward off female competition or signal danger to her young . </P>
<P> 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 . These feathers are marked with eyespots , best seen when a peacock fans his tail . 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 . The female also displays her plumage to ward off female competition or signal danger to her young . </P>
what are the feathers on top of a peacock 's head called
what are the feathers on top of a peacock 's head called
crest
crest