That won't work she will.just lead them back. I usually just leave mine in the coop. When they hatch I move mom and babies to a dog kennel in the coop, at night that way she has a quiet place to take care of them peacefully. She will take them back to the nesting.box once the kennel is removed, but by that time they can fly up to her. You will love watching her take care of them. I have been waiting all spring for my spitz.to go broody, she is clicking and puffing up like she wants to, but I guess there's to much free ranging to do.
Michele