Hello. I have 2 questions. 1-Does it matter if the roost is a round dowel or a square piece of wood like a 1x2 or 2x4 on edge? 2-The original roost I built for my chickens wasn't very well thought out and they out grew it or so I thought. So I moved it 2 feet away and built it a little different and they won't go on it. Everynight when I go to the coop there they are sitting on top of the nesting boxes where the old roost used to be. I think I need to rebuild their roost in the original spot. They are 8-9 months old. What does anyone think?