I have 2 pekins, 2 mallards, and 2 mixes (not sure what they are, they are the size of the Pekins) I am in the process of getting 2 call ducks only a month old from a lady off craigslist. She doesn't know the sex of either yet. I am just wondering do you think my ducks will except that young of ducks or would they have to be seperated? Also I know call ducks are MUCH smaller breed then the ducks I have, when they are brought together will they get hurt? Will my drakes hurt them??