Need help, rooster attacked
sounds a lot better off out of his misery. Give him a hero's burial. It will be easy to find a replacement for free, there are so many good free roosters out there.
Honey is excellent for dabbing your fingers into and putting on wounds. You can wash it off after a few minutes, just pour drinking water over.
- The Token Finn
If he can't actually raise his head, then I'd say an axe is the most compassionate route to take.
Otherwise, stop the bleeding and clean wounds (antiseptic spray, honey, Vetramil, Vetericyn are all good things to use on wounds), check for broken bones, see that the nostrils are clear and that there isn't any blood blocking them (in my experience they won't eat or drink if the nostrils are blocked).
But yeah, maybe it's kindest to let him move on.