Huey used to be nervous outside of his cage. Unfortunately (not really!) for him, we're a cage-less house except for nighty-night time and he just had to deal with it. It didn't take him but a few months till he was flying around and acting like the place was his - particularly his swingy rope in the kitchen where he now commands his ship, orders the chef around etc...
Huey tends to bite, usually only me as he prefers the ladies, when I try to put him on his rope perches. He'll step up and immediately take a swipe a my hand. He's got me a few times at the base of the thumb and ripped me open good. He's super naughty that way. I quickly learned to make him step up to the rope, never step back, because then his rope is between him and my hand. I can pull down and back and he can't get me although he's learned to hang onto me with one foot and can still get me occasionally.
We've had him 9 months now and I'm just now getting to the point where he will let me pet him down the back (he doesn't take it as sexual with me at least) and give him a kiss on the beak and give him a hug. 9 long months!