As much as these guys are very photogenic from a profile view, I always thought they looked rather comical straight-on. This individual stayed frozen in this pose for a few seconds before a Red Squirrel startled it away. Virtually full-frame (cropped a tiny bit bottom and right to balance comp.)
An interesting view, Daniel. Good detail in the whites and good sharpness around the head. A little more DOF would strengthen the image, IMO. I'll have to try to capture this pose with some of the nuthatches around my locale.