I have 15 silkies and 9 rhode island red roosters that are two months old. I also have 25 production red hens that are 1 month old. I live in michigan and was wondering how old they should be before I move themout tho the shed that has no power, and two windows. The coop is 12x16 with two seperate rooms for chickens within it. There is 3-4inches of sawdust on the floor and there will also be foam insulation on the walls covered with plywood to keep then heat in. Any advice as to when to move them out to the coop would be much appreciated. And also if i should keep them locked up all the time in the shed while they are still somewhat young or if I could give them some outside time. Thanks for any and all information.