Is it illegal to own a peacock pheasant?

Yes, course it is legal to have a peacock. Peafowl are in fact a registered pet, and widely popular throughout Asia, Europe, Australia and North America, however are protected in their native regions. Peafowl are recommended pets for rural areas, and are known to stay within a 100 feet range of their territory, giving them a reputation of being very loyal. However, unless you clip a peacock it fill fly within its 100ft range, and peafowl produce loud calls that can be disturbing, but ignoring these facts peacocks are a moderately common pet throughout the world.