So I figured I would share a story about one of my Peepers (my youngest hens at 2 yo). She decided to venture into my yard when I opened the gate to feed the hens. Unfortunately for her all 4 of my dogs were out at the time & as soon as they realized she was out they came running. I couldn't grab her in time so the dogs got her. When I finally got all the dogs off her she was hiding behind some chairs. I picked her up, & since she wouldn't hold still put her back in with the other hens. With the amount of feathers now in the yard, including one with a piece of skin attached. I was quite certain she would not last long. When I picked her up I did notice there was no blood on me.
Fast forward a week and she is still alive, acting like normal & you would never know the dogs got her except for her missing feathers. I did however notice while watching them eat. that the food she ate was getting all over her chest. I then watched closer & realized it was coming out of her chest !! Apparently her crop (which was bulging & full at the time of the attack) was pierced !! Later that week while trimming the other hens wings, I was able to grab her but she was so upset & flailing so much, I decided to let her go so I didn't stress her out more. I wasn't able to see her wounds.
Its now been about 6 weeks since she was attacked & she started laying again about a week ago. I have no idea how she survived the attack. Never any smell of infection, she dust bathes in the wood ash & continues to prune that area. Other than the missing feathers you would of never know what had happened.
I had another hen in the past get attacked by the dogs, because she ventured out when no one was home, so we had no idea she was out of her area. She lasted less than 2 weeks & that was after stitching her up her chest and using blue kote on her.
Amazing how one survives & the other doesn't with almost the same injuries. They are even the same age. She no longer tries to leave her area now

I prefer smart birds who stay inside their electric fence area.
These peepers have slowly been lessening in numbers with their desire to explore outside the safe area. I don't know if its because they are EE/BCM mixes or not but past BCM & EE hens (not crosses) were not so adventurous.