I have 2 pullets that were hatched on 6/18/25 that have integrated wonderfully into my small flock. My only issue with them is that they will not go into the coop at night. I have to go out every evening after the sun has set and place them in the coop. I have been putting them just inside the door, once there they have no issue going to roost. This has been going on for almost 2 weeks. How do I train them to to go inside on their own?