I have some chickens born in May, when I put them in the coop with the big chickens I separated the coop. It’s all closed in half metal half wire on top. There’s a few big limbs in there we’ve attached to the coop to roost on but by laying hens roost in the enclosed part where their boxes are. How do I get my pullets to roost in there, they just roost outside? I’ve tried putting them in there at dusk but they just run back in the open area. Should I move them in there at night once they’ve roostes for the night and see if they stay? Suggestions??