HELP, we are new to chickens. We have 6 pullets soon to be 6 months old. We got them about 3.5 months ago and we were told they were 2 months at the time. When we first got them, they were sleeping on the roost we had built in the coop. About 3 weeks ago we discovered they were sleeping in the 2 brooding nests we have. We read on another posting that someone was having the same problem and decided to raise the roosting bar and close up the brooding nest. Tonight, once it was dark, we went to check on them, and all 6 of them were in the one brooding nest. They haven't started to lay yet. Should we close the other nest?? And for how long? We have placed golf balls in the nests, but they keep moving them out of the way, and keep sleeping & pooping there! Any comments or suggestions will be greatly appreciated!