|Message:||My formula for working with abused or neglected birds is patience, routine, and food.
You need to be patient, because Cheeky may take years to relax, and may never be as friendly as a bird who has been better treated. But don't let that discourage you; you're doing a good thing by sheltering him, and it is the most amazing and humbling feeling you can imagine when an abused bird shows signs of trust. You can show your patience, too, by moving and speaking slowly and evenly.
Routine is also useful, because an abused bird dislikes change and the unknown even more than most parrots. Try to make his days as much the same as possible, and make sure that he gets lots of time to sleep as well.
Finally, feeding a parrot is usually an ideal way to build trust. At first, he may refuse food, or grab it quickly, maybe nipping you in the process, but keep trying with a variety of food, and he should come to accept you more.
It's impossible to predict how much Cheeky will recover. He could remain a nervous bird for the rest of his life. But even if he never progresses beyond sitting near you, you will still be giving him the best life possible, and can enjoy your connection to him.