we feed a family of wild magpies and have done for ages, at the moment all of a sudden one of the babies just sits on the porch asleep most of the time. i think he's sick. there r 2 babies and the other one is fine, flys off with the parents but this little one doesn't except for sleep at night. could i add something to its food to help it. i usually feed them steak, mince and chicken, but i could throw something separate for the baby. please help I'm really worried : (