I had them in the room I'd turned into a bird room / aviary. Problem is that the room is not on the central heat / a.c. I've been heating it with a separate heater and was going to install a room a.c. next spring for summer temp moderation. It's not a large room, but the temp tonight is going to 13 degrees, and it'll get much colder later this winter. Today was about the coldest we've had weatherwise since I moved them out there. The room is not nearly as well insulated as the house & has concrete flooring, covered with carpet. I'd "thought" based on how my garage does in winter that this area would stay warm enough. Today I was fighting to keep it above 60 out there. The heater was running nonstop. Part of the problem is that the door is not insulated and opens to the outdoors. It's an external door, but not a really great one. I was "really" afraid the heater would quit overnight, the breaker would trip, or we'd have a general power failure & I wouldn't know it because I was asleep or not home. It would cool off fairly fast out there. I gave up & we just moved them & all their stuff to the basement. I will sleep MUCH better tonight knowing they are inside! I'll have to be extra, EXTRA diligent with bedding changes & cleaning up dust down there. However, I'll save a small fortune on my electric bill (won't need the extra heater PLUS I won't need the extra set of lights on out there). I'll be rearranging the basement in a week or two. I've got a pretty nasty back injury right now and was lucky to get things down there (thanks to the help of my son, who is much stronger & more able bodied than myself). My basement looks like a zoo right now. I might as well just get a monkey or two and a hippopotamus and charge admission.