My six pullets have been in their coop for about three weeks now and have had almost no problems except that they seem to spend a long time jockeying for position on the roost every night. The roost is about three feet off the ground with a ladder leading up, and in the morning I always find them all roosted and happy but man every night they spend an hour knocking each other off and pecking each others feet. Is that normal? there does not seem to be a space problem, I had two five foot 2x4s and removed one because they were not using it. Should they all be on riddlin (haha)?