I just put a roost in for my girls last night.. LOL actually I called it a "training roost" since it is maybe 1.5 in off the floor! I basically nailed a long scrap of 2x4 to two scrap blocks of wood. They don't sleep on it.. well one (my fav. little Sally) tried, but her sisters and brother weren't done pecking at the thing yet, so they scooted her off! Mostly they just like to peck it, and hop on and off. They seem to prefer huddling on the floor to sleep. They can't kink their necks at odd angles on the roost, after all!
-Meghan