Two of them appear to be sultans, the third perhaps a silkie mix, or they might all be silkie mixes, I can't really make out the combs on the possible sultans to be sure.
Well, now I really don't know. They look like sultans but with single combs instead of the V combs they are supposed to have. Maybe sultan mixes? But that does not explain the one with silkie feathers.
So these are not original parents of sulthan? may be some cross in its parents with silky or other breeds ? Also one baby have black skin pls check the legs.