My budgie is bolting and is showing some interesting feather coloration. When I first got him( I’m not 100% it’s a male) his head was yellowish white, now it’s showing a turquoise green on the back of his head and upper back. there’s also a purpleish blue near his cheeks. I’d like to know if there is a certain name for his mutation. Also how long do budgies take to achieve their full color. I’m certain my budgie is less than or about a year old, he was tiny when I got him but has grown so much in the 3 months I’ve had him.