I started out my little chicken flock with eight week-old "dominique pullets" at the very beginning of June. Well...long story short, I have ended up with 1 BR roo (after re-homing four others!), 2 BR pullets, and 1 Australorp pullet...all 21 weeks today! haha What a mess. They are ALL extremely easy going, docile birds, including my roo, Kip. After many hours of observation over these months, I've never seen any inkling of a scuffle between any of them. Kip is super friendly, but does a great job of watching over his ladies, ensuring that they are safe while eating and rounding them up and into the coop for the night. (Heck, he even sleeps by the door on the roost, like he's on guard!) Down to the 4 from 8, I had plans of hatching some SPPRs to add to my flock. One crappy bator and two horrific hatches later, I've ended up with one SPPR pullet and a Modern Game roo, purchased to be a buddy chick for her. What a pair! haha Like the others, these two are EXTREMELY docile birds. The Modern Game roo can be cuddled, he's so laid back! They are both 9 weeks old and are doing great. I have the two youngsters in a large stock tank (with hardware cloth cover) in my home as a brooder (they don't need a light anymore, of course). My outdoor set-up consists of a good sized coop (I say it could hold 12 grown birds, but allegedly more should fit...I'm big on each bird having a good deal of space) with an attached outdoor run. The run is large and fully enclosed, to protect from predators, with plenty of room for play and exploration. At what point should I be able to safely integrate these two little ones with the other four? My concern is that they are substantially smaller (maybe a little less than half their size), but the nights are getting cooler. I could easily install a heat lamp in the coop, so temperature is not so much the issue yet. If I wait for them to grow larger, though, it will be too much of a temperature shock to stick them outside. Am I going to have to figure a way to keep these babies inside all winter? Thank you so much for any advice you can offer. My timing for hatching was way off...I've learned my lesson.