Hi Salah, why are you worried about them? They are 16 weeks old Amazon's? I'm nit sure the weaning age... Healthy foods are veggies, like squash, romaine lettuce, pumpkin, peas, green beans, carrots, bell pepper, hot chilly peppers, brussel sprouts, stuff like that, and a healthy seed mix , pumpkin seeds, squash seeds, safflower seeds, a few nuts like walnuts, almonds, fruits like strawberry, banana, blackberries, plums, mango, cooked brown rice, cooked oatmeal. I hope this gives you some ideas. No no onion no Avacado no garlic. Never use non stick cookware it Teflon pots and pans the funes will kill your bird... If you can post pictures or tell us more it would help us help you