I have a partitioned off section in my coop where I separated two broodies that successfully hatched and raised chicks. The partition is basically just 2 x 4's and chicken wire, but did a great job keeping the broodies apart from the others and helped easily integrate the new chicks into the flock as all of the birds, both young and old, could see each other through the whole process. I do plan on adding some 1/2-inch hardware cloth to the bottom of the partition, though, so the new chicks can't stick their heads through. I now want to use this same partitioned off area to raise some new chicks that I have ordered arriving later this month. My question is, if I use my regular red heat lamp in the partitioned area to keep the chicks warm, will it negatively affect my adult birds who are using the remaining larger part of the coop? As there will always be some light in the coop, even if it is the less harsh light of the red bulb, I want to make sure that it won't mess up the day-night cycle too much. With mother hens I didn't need the heat lamps, so this is something new I plan on doing. While I should probably still go ahead and invest now in one of the plate style brooders, I still want to hear your opinions if I did decide to go with my faithful red heat lamp.