White Peacocks or Peafowl are not a separate species, these are observed in nature due to albinism in peacocks or leucism in peacocks, due to which vibrant peacocks are seen in White appearances. It will be difficult to see them in wild, many zoos have them in display though. read more
White peafowl can mate with blue peafowl, leading to blotchy blue and white peacocks; I have a peacock with one white wing, but regular peacock colors everywhere else. They don't really show up in the wild, you might be able to see one at a nearby farm or zoo. read more
Wild peafowl live in several locations; the blue peacock species lives in India and Sri Lanka, the green peacock inhabits the regions of Java and Myanmar and the elusive Congo peacock lives in rainforests throughout Africa. read more
For example, the green in some parrots is a result of yellow pigments over blue-reflecting feathers. In the case of a white peacock, its unusual lack-of-color is due to a missing pigment. This missing pigment is dark and absorbs incident light, making diffracted and interference light visible (i.e. common peacocks). read more