After doing some reading i really havent found out what i'm looking for. I understand the run within a run etc..but my question is at what age is best? and at this time of year what do i do? I have right now 4 six month old hens and 3 six month old guinea that are doing just fine in the coop out in the barn. In my garage brooder i have two 9 week old hens. When is the best time to introduce them? Here is the problem i'm facing...Its getting cold quick in the midwest and within another month it will be high 20's etc...All i have is a 40w light in the coop in the barn, I can't leave the younger ones exposed to the temps over the next few weeks while the others get used to them, whats my options here? We also just hatched yesterday 6 of 8 new chicks, they're brooder is seperate from the garage brooder, but i see a problem coming up over the next month or so when they out grow that one. This was a lesson learned on my part on when to hatch new chicks and dealing with the winter months, now i need to fix it. thanks Brian so i have; outside barn--- 7 total birds at 6 months old ( all hens) garage stage 2 brooder---2, nine week old hens garage baby brooder------6 one day old chicks got my hands full!