My Delightful Dozen were moved out of the furniture box in the kitchen and into their new diggs. All day they had the run of their run, plenty of dirt and stuff to peck at. Tonight they are in their [just completed] coop. They have a nightlight but no heat lamp. It won't get any cooler than 65 degrees tonight. I am, of course, concerned that they might need the extra heat? What temp would be best? It was soo hot here today, that the idea of adding heat sounds bad, but will they be ok?