aggressive Parrot

by Jill
(Port Charlotte, FL)

Hi! I recently adopted "Buddy", a 10 year old Amazon. When he first came to our home, he seemed like he was comfortable, talking to everyone, not biting or attacking. We have since moved and he is very angry. I know I need to get his wings clipped but, I was wondering if there was an issue of his age. Would this make him more aggressive? (His previous owner didn't want to get his wings clipped. He wanted Buddy to have the freedom of flight.) And also, can he be retrained?

I am his third owner and I want him to have the best life possible and I don't want him to be kept in the cage 24/7. Where do I start? Buddy is my first parrot and I don't want to quit on him.
Thank you for any advice you can give me!