I have 5 day old ducks and they always come running up to me and they nibble on my fingers and my clothing. I give them chick starter, which is for ducks also. Is there anything else that I can be feeding them? They have fresh water always, i change it a couple of times a day and they have a big plate full of all the baby food they can eat. They act so hungry. I have even ground up their baby food so they can eat it easier....any ideas?