So I have 2 chicks, a silver laced wyandotte and a barred rock, which are now about 10 weeks old (?) - they've been spending the days out side in the coop while the established flock free range in the backyard. They are, in my opinion, too big to be locked up in the basement during the day in their pen. With the colder weather coming in today are they ok to be left in the coop during the day or should we keep them inside? They are very well sheltered from the wind and we're putting down more bedding for them (this coop is under construction so its not occupied by the flock at night). I'm just worried about them going from being toasty and warm down in the basement to a chilly 40 degrees outside.