Sorry..here is another feeding question about my baby mallard (Marshall ) He is eating duck starter feed and things he finds in the lake. How long should I keep him on the starter feed? The bag says "from birth to slaughter" Obviously I do not plan on slaughtering him, so I am wondering if it will make him too fat to fly eventually? He's only a week and two days old but he looks like he has some "fat" kind of hanging from his neck...is this normal? He has access to this feed pretty much all the time, except at night. Should I ration his food or let him eat whenever he wants to? What would I switch him to (and when) if he is supposed to get off the starter feed eventually?