You can still imprint by holding them and talking to them they will eventually look at you as mommy and a protector then something they don't know. Hold them once or twice a day. I pet mine while they are on the ground like a cat, and mine seem to imprint and like being petted with out holding but each chicken is different. Ducks are the same way! I talk to my flock all the time and sometimes sing to them, yes i'm coo coo! Hope it helps!