Peafowl is a common name for three bird species in the genera Pavo and Afropavo. Male peafowl are known for their piercing calls and their extravagant plumage. Like other bird species, it’s the male of the peafowl species that has such eye-catching color and lovely decorative tail feathers. In 1963, the blue or Indian peacock (Pavo cristatus) was designated India’s national bird. A peacock’s tail feathers can reach up to six feet long and make up about 60 percent of its body length.