Hi! I have recently adopted a Male Cockatiel by the name of Baby from a pet store. The first I recieved him, he seemed okay but a little shy. Now he is biting and becoming mean. I was told that he talks, which he does. Also that he was very very close to his previous owner. Any tips on how I can make him feel at home? Also this is my very first time have a cockatiel and I have much to learn. His previous owner allowed him to come out on top of his cage and walk around the house. He is neither afraid of cats or dogs, but when I let him out he refuses to go back in his cage. Any suggestions? Thank you!