Cut off the ears and reserve. Split the skin and meat down the center of the head, beginning at the top and working around the snout and to the back of the head to split the skull down the middle. Then, beginning on one side of the head, run the knife along the contour of the head, following the bone structure, to remove the skin and the attached meat. Be careful to remove the piece of meat on the temple, behind the eye, first and then the cheeks; you want these pieces of meat to stay attached to the skin. Follow the line from the jawbone to the snout. Repeat on the other side. Remove the tongue and set it aside.