I finally did it. I evicted my 6 (4 hens2 roos) from my house into their house. They are 7 weeks old today and fully feathered. I put up a heat lamp with 250w infrared bulb. It's 32 degrees outside temp and inside is between 40-45 degrees. When I checked them last night they roosted almost above the lamp but really close together. This morning when I checked all were scattered on the floor happily pecking and scratching. They certainly seem to be adapting better than I am. One interesting thing I noticed, when they were in the crate i the house, everytime I went in to them they ran away screaming, when I went into their house, they ran toward me as if they were welcoming me to their home. They now have lots of room and are and are taking every advantage to spread their wings! They are even making "big girl" noises instead of just peeps.