Most likely they didn't ,but really sad they would take them from their mother, and maybe not even know how to care for them properly or even be prepared to care for them and the poor littles would die because of it. I commend the OP for stepping in and possibly saving them.Muscovy ducks are not a protected species in a lot of states. Wild native birds species including coots and mallards are protected. Feral muscovies are not. Those kids may not have broken a single law.