Do you hear any air gushing from any of the wounds? Air sacs which are located in wing bones and other parts of the body, can easily be punctured by fangs. You may need another pair of hands, to get him and examine him closely. If he acts in shock, he may be better offer left alone in a quiet warm spot like a dog crate at first. The crop in the upper right chest, where the food and water is stored before moving through to the gizzard, has two layers. It can be torn open, and he would not be able to get much food since it could leak out. Crops can be closed first closing the crop layer, then the skin layer with stitches or with Superglue.