The three species of the peacock, Pavo cristatus, Pavo muticus, and Afropavo congensis inevitably make the list of the most beautiful birds in the world. With its long train and spectacular coloration, the beauty of the peacock is on the border of sublime and ridiculous. It’s no wonder that the peacock is a symbol of overweening arrogance. But this exotic beauty is for a purpose and comes with a price. The male uses his train to impress the females. It takes a lot of provender to keep those feathers in tip-top shape, and the male is, to say the least, easy for a predator to spot.