cockatoo will only each sunflower seeds what must i do, I've both special food for him, made birdie bread, fresh fruits and veggies, penut butter my other 2 birds congo grey and sulfer crested cockatoo eats anything you give them plus people food but not this umbrella I had just gotten him a few weeks ago, he s a lovealble bird and demands lots of attention and he owns me lol... but I can't find anything that he will eat but sunflower seeds, I know this is fat and should be used as a treat but I can't let him starve any suggestions?