I've got 28 7-week old leghorn girls that are raising the roof inside their horse troughs in my garage that's probably about 10 degrees higher in temperature than the outside air. They are getting quite busy in there and dump over their food and water, so I'm cleaning it all the time to keep it dry and I usually come out with feathers, wet food and who knows what (?) stuck all over my face and hair and I think we'd both be happy if they went OUT. The lows are around 35 degrees. Would it be too cold if they were provided straw possibly in their tubs turned over? They would be turned out with older hens and a couple of cochin roos. Thank you!