Yesterday I worked all day in the barn, cleaning the brooder room. I removed the baker's rack for Roger to use for his power tools. Moved the 6 cage unit, sanitized all the cages and fed close to 25 baby mice to the girls. We sure have had a prolific mice infestation!
Im going to leave the concrete floor clear of chickens but devise two more floor pens in that room to accommodate the biddie Bantams and the large fowl with young chicks until they are ready to free-range.
Someone asked when do you incorporate juvenile birds into the flock...if they are hen raised, I let the hen do it when she is ready...usually about 2 weeks of age. If they were hatched and raised in the brooder boxes, I wait until they are about 6 weeks of age and put them on the floor with a separate feeder, waterer and roost in an enclosure that they can leave and return themselves. This could be a big dog crate with 2x4 openings or a bit larger. Just big enough for the chicks and not the hens. The chicks will explore the hen house when the big birds leave to freerange. The hens returning to the nest boxes to lay usually will not pay much attention the the chicks.
Now a neat story...while I was cleaning yesterday, I noticed a Blue laced Red Wyandotte that had been broody for her 21 days sitting on a golf ball calling chicks to her side. Four or five 4 week olds whose mother was outside, responded and snuggled under the BLRW's wings and started trilling. She kept calling and other little ones moved to her. By the time I finished in the brooder room, she had accumulated 8 chicks. Guess, she felt these were hers since she sat a full hatch period because when the real Moms came in, she defended her clutch against them. Each of the other hens has about 10 little ones so having another mom isn't going to be a problem,. This morning she had them outside hunting behind the barn. Not bad for a hatchery bird.