Update: Last night the brahma hen (who is the most hurt) tried to get up on the roost with the others. After 2 failed attempts I asked her if she wanted help. She walked right up to me, so I put her on her favorite rung. Then Baby Blue tried to get up there too, I did the same for her. This morning I had to help them down, they knew better than to try it on their own. All 4 have made it this far, hope they will continue to improve.
My sis called this morning and asked when I turn them out. She wants to turn Dingo loose again! It's obvious that she has no intention of putting the dog down. I told her my babes freerange all day. If I catch that dog at my place again I will take matters into my own hands, literally!