We have a 2x4 across the back of the coop that measures 89 inches and sets up higher than the nesting boxes. Is that enough for our six chicks? It's funny as they are eight weeks old right now and they all cram on the end by the window- just smashed together lol. I'd like to get about three more chicks in the future- or possibly bring it up to ten. Should I put in another roost?