Today my neighbor brought her dog over while we had a picnic. One of my roosters was teasing the dog and he broke free and slammed it into the ground with his mouth and just held it there until we ran over. He let go right away and was not trying to eat the chicken. The rooster had one bite mark on its back right under its wing near the mid back. It looks like two tiny holes made by the teeth. No major bleeding. The rooster try's to walk but the one leg doesn't appear to be working. I cleaned his wounds and put him in a safe building with food and water. He is eating and drinking. Everyone is saying I should kill him but from what I read on here they can recover. Thoughts?