Another mistake new bird owners make is to run right over to the cage the moment they get home from work and let their bird out of the cage. Again, the first time you are too busy or tired to do this, your bird will not understand and he will probably voice his objections. It is best to wait until you unwind and relax before getting your bird out of his cage. After all, time spent with your bird should be quality time not rushed, stressed out time with your bird. Now lets talk about your birds' screaming.
Many people start looking for some kind of treat to give their bird to shut it up.
Your bird just taught you a trick. He screams and you reward him with a treat. Don't even think about yelling back at him. He thinks that you are playing a screaming game with him and he is going to want to win. If you are thinking of throwing something at his cage, then think again.