These chicks have been inside with Central Heat and Air for their lives up to now. They have had a warming light at night til just recently. It's going to be 54 tonight and the coop is open on one end (3 sided coop). Should I bring them in or let them stay the night? Is 7 weeks feathered enough? No electricity out there (solar night light) so no option to use a warming light in the coop. Here they are enjoying the room after an ever growing more cramped brooder. Here's the closed end. the whole thing from the back... coop is not quite finished comestically, but it's ready for the chicks. Are they ready for it?