Mine could fly up to a 3-4 ft place and flap/climb to the top of this coop....they also roosted on the top of the water bucket in the coop, the top of which was 3 1/2 ft. off the floor. They flew to the top of the picnic table as well. You'll get out of your CX what you allow them to do. Mine were brooded outside in an open air coop in early March with temps in the 30s still at night and only 50s in the day, were free ranging at 2 wks and doing without the heat lamp at 3 wks. altogether.
Whatever you say.
Some of mine were living with the layers, and they still were not active, and did not want to free range with the others. This was at about 5-7 weeks though.
I have talked to others with this kind, and everyone has the same outcome. Your chickens must have been into monster drinks.