We had 27 (now 22, they're gradually going to new homes) in the back shower room--initially in the shower, as I could close the door and keep them warmer. Then we gated off the bathroom door, put down bermuda grass on the floor around the toilet, opened the shower door, and the now 4 week olds hop in and out of the shower, up onto the (closed) toilet, and I just "installed" a roost with duct tape to the wall. If they're closed up for a while they're a little smelly, but it just smells like chicken poop. When it gets poopy I put down a new layer of grass. I open the window during the day and the smell is just fine. The quantity of dust is amazing, and I'm glad I have them enclosed in an area that will be easy to clean when we're all done. I'm trying to figure out when to move them outside--the plan is to turn off their light permanently tonight to harden them up and probably put them outside at 5 weeks as it's getting into the 40s and 50s at night now, 60s-70s days. These are our first chicks--the rest of the flock came as adults.
To the more experienced chick raisers, when moving your birds outside at 5-6 weeks, do they have to be "draft free" at night, or would curtained brooder boxes be enough? We do not have electricity/heat lamp capability in the transition coop area.