Chris, the problem with this kind of shot is that when you track a bird in flight you have to keep him under the camera's focus point. Most people don't move that point off dead center unless there's a current reason to do so, and I'm a member of most people. So it's pretty obvious that the bird was in the center of the original shot. But the D800 is very "forgiving" in a situation like this. If the bird had been standing in the shade, I'd have been able to grab focus and then shift the camera, but he wasn't standing in the shade.