Often referred to as an albino peacock, it is nothing of the sort. It's technically a white peacock which is a genetic variant of the Indian Blue Peafowl. The colors in the feathers of a bird are determined two factors: pigment and structure. 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.
Albino and Half-Albino Peacocks Are Simply Stunning (Photos)