Hello, As my user name suggests, I have an eclectic flock of different breeds and ages. The oldest are kept separate from those that are not full grown, so the only ones sharing the big coop are between 3 and 5 months old. One group of Jubilee Orps all arrived together and ever since they came home they have stuck closely with one another. This group also includes the only cockerel in our flock. Now to the issue, they absolutely refuse to roost. Every evening they come into the coop and sleep in a big "puppy pile" in the corner. I have tried putting them each on the roost for a few nights, but it isn't making a difference. Our Buff Orpington of a similar age took to the roost immediately, though her bff is an EE who jumped up first. Will the Jubilee eventually roost? Is it detrimental to leave them sleeping on the floor? Additional info: Coop is 8x12 and 6 ft high. Lowest roost is only about 2ft. high, with a poop board under it that is maybe 18" from the floor. Total roost space is 16ft.for 13 large fowl, though the 9 that roost now snuggle up on one end of one roost. Orps in question are 11 weeks old.