We finished (structurally) the coop on Saturday. We still have to do the trim and other cosmetics and build the nest boxes, but since they are 10 weeks (BO's) and 7 weeks (Brahmas) we have some time. So we moved them in to their 8' x 10' (7' high) coop that we built. Of course, we got horrible rain and discovered a leak after everything was set up - **sigh** - but since it was along one wall - between 2 pieces of texture 111 - we left them in. At any rate, we went to check on them after dark and found 9 of them huddled in a corner together and 1 in each window. We picked them up and put them on their roosts. The BO's seemed to stay their pretty comfortably, but the Brahmas wanted NOTHING to do with the roosts. The minute they were set on the roost, they leaped off. We have one roost about 18" off the ground and then one above that at about 2' higher. We checked last night and the Brahmas were laying together on the floor. Should we keep persisting and trying to get the Brahmas to use the roosts or let everyone figure it out for themselves? Next question: We are using the deep litter method. The floor of the coop is treated plywood and the coop sits about 12" above the ground. How important or essential is it to use DE?