Our two female Blue Swedidh Ducks hatched four ducklings between them. We let the ducklings stay secluded with the moms for three dsys. We provided water and mixed flock starter for the babes but the moms would get into the feeders and dump them. Three of the ducklings died. We took the fourth one up to the house to brood for safe measure. We know how to brood the duckling however we do t know when and how to return our brooded little one to its mother and that flock of 4- all Blue Swedish, three females and one drake. Any suggestions?