I give lilly a very small amount of either walnut, cob nut, almond or dry coconut, these are very fattening and need to be used sparringly also unshelled and unsalted sunflowers seeds again they should be used sparringly, do not give monkey nuts/ shelled peanuts as these can have a fungus in them. Or just find something that your parrot real likes having but give it sparringly after all its a treat. Just make sure that its healthy for your bird that it wont make them ill, im sure theres a list of things that are healthy for the parrot and whats not on here, and im sure other members can give you a list too.