Peafowl
In both species of Pavo, the male has a 90–130-centimetre (35–50-inch) body and 150-centimetre (60-inch) train of tail feature
that are colored a brilliant metallic green. This train is mainly
formed of the bird’s upper tail coverts, which are enormously elongated.
Each feather is tipped with an iridescent eyespot that is ringed with
blue and bronze. In courtship displays, the cock elevates his tail,
which lies under the train, thus elevating the train and bringing it
forward. At the climax of this display the tail feathers are vibrated,
giving the feathers of the train a shimmering appearance and making a
rustling sound.
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