The India Blue Peacock is directly related to the pheasant in both genes and size. The main difference between the two, in fact, is the Peafowl's beautiful plumage, which they do not develop until they have reached at least three years of maturity. The males are called peacocks, the females peahens, and the young offspring peachicks. If you have ever seen a peacock in a zoo or park, chances are extremely high that it is an India Blue Peafowl. In appearance, they do have a few variations. These include the white, the pied, the black-shouldered variety, which occurs in males only and causes the wings to be blue, green and black, and the rare Spalding variety, which is a crossbreed between the India Blue and the Green Peafowl.