Hey, maybe all you Australorpians can help me out. I'm in the process of designing my coop, and I want to make sure I don't put the roosts or nesting boxes too high because of the heavy-bodied breeds I'll have such as the Buff Orpington and Australorp. I read that Bumblefoot is a common problem & to not have them up high on these things to prevent it. So my question is: how high should my highest perch be?