Peacocks are, and should always be considered as one of the most beautiful birds in the world. They’re found inhabiting a few countries in India. The tail of a peacock makes up more than 60 percent of his total body length. It can be arched into a fan, which reaches across its back to entice females (peahens). It is believed that a peahen chooses its mates according to the size, color, and quality of their tails. Every portion of its tail changes color when it’s struck by light from different angles.