I've got two five-week old chicks who are getting a little big for their brooder. I'm wondering if they are ready to go into the coop. We live in Flagstaff, AZ, at ~7000 ft. The temperature right now has been ranging from mid-70's during the day down to mid-40's at night. We have a big coop with attached hen house. The hen house is a sturdy, insulated shed. It's usually warmer in there than it is outside, but I haven't gone in at night to see if that's always the case. In the brooder, I've been stepping down the temperature ~5 degrees per week as I've seen mentioned on this forum. They started under a 250-watt brooder lamp, then switched to a 100-watt regular house bulb, and now they're under a 75-watt bulb. It's about 80 degrees in there during the day, maybe 75 at night since the brooder is inside. They don't sleep right under the light, but they don't sleep far away from it, either. I'm worried that if I put them into the coop they'll get too cold. Although they have most of their feathers (still a little fluffy on the tops of their heads and under their wings), there's only 2 of them, so I'm not sure how warm they'll be with only the two of them to huddle. Should I put them out there with the lamp? What do you think? They love being outside, so I'm eager to get them out there!