I just got done building a coop, and run, and I have my first chicks. I got 3 Buff Rocks, 3 Black Austrolorps (I can't spell it), and 1 barred rock. The coop is sealed tight as a drum, and I can put the same 100w light fixture as is in the pic of the brooder out in the coop with them. Do you think they would be Ok? I don't know how old they are, but I bought them a week or so ago, and I would guess they are about 3 weeks old, because they had some little tail feathers on them when I bought them. What do you think. I can keep them in the house about a week longer if I have to, but the wife wants them outside, and off her dining room table.