Why does a peacock spread its tail?

The peacock is a male Indian peafowl. An adult peacock has an average of 200 tail feathers, which are shed and regrown each year. When it spreads its long feathers above its tail, it makes a large fan of glossy, bluish-green plumes that have large eyespots. They are iridescent and contain many intricate patterns. This site attracts the female peahen, and may encourage her to breed with him. The decorative feathers are also called display feathers, because the male “displays” them as part of its mating ritual.