We have a cockateil who used to bite the heck out of us. He finally became friendly but not with me. Recently we switched his food because he was having weird episodes where he looked like he might die. Finally, when we switched his food, he became friendly all of the sudden. He loves everyone now no matter who! The difference in the food is that it no longer had dried fruit and seed mixes in it... Just plain food. Do you have any idea what might have happened?