I had to have a giggle at some of the posts brings back memories. We moved our 20 8 wk old chicks to their new house with run attached at 8 weeks old. Kept them in that area for about 1 week before I let them out to free range so they could get use to it. I had to go down each night for a week (at dusk) with a torch and put each one of them on the roost (they would huddle on the floor near the door). They soon worked it out may have even been 2 weeks. There is only one now that prefers the floor. They are 7 mths old now. I did keep food & water in the shed but then removed it and put it in the run. too messy in the shed.