I'm putting up a new perch today. My coop is 6x12 and I wanted to put a perch on the long side because that is where they want to be. My original perch was on the back but they keep trying to sleep on the ledge on the long wall, so I figured I'd give them a perch there. However, this way they don't have as much room to flop down before they hit the other side. So the question is, for Buff Orpingtons, how high can it be if the horizontal distance down is only 6 feet? The higher the better but I don't want them to hurt themselves! That was why the original perch that they don't seem to like was across the back with the 12 feet of space in front of them. Advice will be much appreciated!