Hello. I just made a 6.5'x12' coop for my 8 week old chickens by partitioning off part of our barn. The 24 hens are mixed breeds (Buff Orp, Golden Comet, Barred Rock and RIR). I made the roosts in a ladder design from 22" up to about 6' (there are 4 total, the lowest one was unoccupied and not in the photo). This is their second night in the coop, and I went to check on them and saw two hens getting pushed off the highest roost (despite plenty of room to spare) and falling to the ground. There were no injuries that I saw, and they both had their wings out to lessen the impact, but I'm wondering if I should re-think my design and make the top roost lower to prevent future injury. Any thoughts or comments are much appreciated.