I agree with the other posts. If they're not eating their chicken feed (which has protein and calcium in it, usually from things like blood and soy), they're probably not getting enough protein and calcium. In addition to their layer ration and additional free choice ground oyster/egg shell, I give mine blandly cooked meat, scambled eggs and dairy in the form of yogurt, cheese and raw milk. Just make sure to limit the amount of salt and oil that might be in people food leftovers, especially processed foods, sweet treats like fruit and corn, particularly citrus, and things with empty calories like white bread (nutritionally speaking it's about as bad as feeding them white sugar). Anything that's not good for us to eat too much of is not good for them, and keep in mind their bodies are a lot smaller than ours, so their limit is proportionately that much less.