Hi, I have a Quaker Parrot and he sometimes gets a little naughty. When he wants it his way and he won't get it he will do anything from chewing my purse,cellphone,papers and he will even start chewing my hair... What i usally do is tell him a simple no by pointing my finger to his peak. No birds likes that at all. Then I'll get him in the cage... I know it works because he starts yapping and his feathers are all spiked up... 10 Minutes later I'll take him out and say good kiko... There it goes back to normal with lots of kisses and hugs...
It worked for me not sure if it works for you. It's just my way...