The female had just flown in to her nest scrape, in the roped off area beyond the dune. This fellow followed, landing on top of the dune to patrol the boundary of the protected zone. We were hunkered down on the beach, and proceeded to get lots of frames of every conceivable preening pose, some quite amusing. Light was harsh, but in this frame that was mitigated, IMO, by the reflected light off the beach acting almost like fill flash.
D7200, 500f4 + 1.4 TC, ISO 640, 1/2500s @ f/7.1 manual. More than FF (clipped a wing and added wing tip and bit of canvas from next frame).