I agree that it has to be your dad that is doing the work and learning about the proper way to care for a parrot. Building trust takes a lot of time and dedication, especially after this bird has learned that your father = traumatization. Building trust with a new bird is hard enough, but building that relationship with a bird after it has been traumatized by a certain person will take a lot of time and patience if it's even possible.
If your father is willing to put the work into this bird if you point him in the right direction then we can suggest books, videos, websites, etc. for him to look at. If he's not willing to to take the time to learn and to put in the effort to improve this bird's quality of life then no amount of training you do when you see it will help.
chiddler wrote:I'm home on the weekends, and all I see is my dad traumatizing it. Thus, there are many things I need to know on how to have it behave properly so that it doesn't anger the father unit.
If the bird needs to behave correctly or it will anger your father then this sounds like a very bad situation for the bird. Birds don't learn how to sit and be quiet and be well behaved like you can train a dog. They are individuals and highly intelligent. You need to learn how to co-exist with a parrot and let it just 'be a bird' and the owner needs to be the one to learn how to modify their own behaviors to create the optimal environment for the bird. Yes, you can 'modify' behaviors through training such as decreasing biting or screaming, but in the end the bird is still a bird. You can't expect it to sit nicely and quietly in it's cage.
Is your father willing to learn about properly caring for the bird? Is he wanting to give the bird what it needs to have a healthy and happy life? If so, I'm sure there are a lot of people on here that can give him a lot of information or point him in the direction he needs to go. We're more than happy to help if somebody is willing to learn.