Thanks for your reply! The pictures actually doesn’t show the gravity of his wound cause I couldn’t manage to remove the feather. So the whole skin piece of the top head was “detached” like I could lift it up. And the entire back neck was open, up until his shoulders. I’m not sure if he was attack by a cat and I read that if so he would need antibiotics? The problem is where I live anything with antibiotics requires a vet/doctor prescription. I only have human Penicillin V pills.
His droppings are very liquid and has a dark green color, if this helps with any diagnosis..
I’m going to feed him the mixture today as you suggested. Also he seems to be uncomfortable because of the louse, but with the wounds im not sure if I should wait or how can I treat the louse yet?