Thank you, and I'm sorry I wasn't able to take any pictures at the time of injury because it was a bit gruesome to look at.. The blue kote covered it all as well so there's not much to see now.
I was doing my usual checks on my chickens at night to make sure they were all fine and settled, next day one of my chickens had her foot caught and was laying on the ground with a giant wound!!!
It looks like the other chickens attacked her and since she was stuck she couldn't defend herself...
