This is the first winter for my four chickens (Golden Wyandotte (2), Aracauna, and a Black Australorp). They had a roosting area in the outdoor (completely protected) run. They've been using this - but, as it is getting colder I'd like them to move to the roost in their new chicken house I built for them. They have chosen to stay on the outside roost even though it was raining heavily and pretty cold a few nights ago. I took down their favorite roost last night and they moved to another outdoor roost. The indoor roosting option is a 2 x 4 on the side and about 4' high. It's in a nice draft free section of their well-ventilated house. My question is - should I take down all their outdoor roosting options, or will they be smart enough to move inside as it gets colder?