Dumb Luck!

I had my long telephoto zoom on the camera, and I was doing some closeups of a gull, sitting on a rock that was above water.  I kept waiting for the gull's head to be in profile and I took several shots while he looked all around.  All of a sudden he took flight, and I reflexively clicked the shutter, because that's what I do.  When I pushed the button on the back of the camera to show me the image that I had shot, I couldn't believe my eyes - the gull with its wings at full spread!  Like I said, "dumb luck."