Hi, I have a pair of cockatiels that seem to get along as far as eating together and they have preened each others heads once. Their in their own room so i can't see them all the time. The female tends to chase the male away when i'm in the room and when the female tries to preen the male he wont let her. The male does do his mating call to the female. They are 3 years old and have only been together for a week. Do you think they are bonded or will bond?