I was cleaning out the coop yesterday and I found one of my hens hurt! She’s acting completely normal but obviously something took a chunk out of her. We lock them up every night so my only guess is the neighbors dog got into our yard. We’ve seen the dog in our yard before but it didn’t seem interested in the chickens. Hypothetically you can pull the pink skin back and see all the way in her. The only way I know this is because when you hold her the skin opens up. It’s like a pocket. I have her inside in a crate. I cleaned her up and put hydrogen peroxide on it. I’ve delt with dog attacks in the past but this is the worse one I’ve seen. The wound is right underneath her wing. What else can I do to help?