So I got the big idea to hatch some chicks since it's summer and I thought they'd be fine outside. Only to find out I still needed to keep them warm and dry. So I'm keeping them in the house under a lamp. For now. A friends daughter just had a baby and was looking to give a away a couple chicks which are a mix breed. (Which I mentioned in the title). We have Blue Splash Marans. Our three chicks and the three we took in are getting along good and I don't really want to separate them. The Marans are about a week older then the newbies and trying to fly out of the box. The mix breeds are quite a bit smaller, but the have their wing feathers. It's been close to 100 during the day 70's at night. The chicks are two and three weeks old. When should I put them in the outside coup?