I previously posted another frame from this series (a few months back). This shot is when the actual mating began and not just the jumping on the females back and getting ready. From Breezy Point in Queens, New York. I was very fortunate to have the action happen at a nice sun angle and shortly before sunset.
Canon 500 f4 ii + 1.4xiii. ISO 400, F8, SS 1/2000. Tripod mounted with legs fully extended while I was laying in the wet sand. 4 focus points covering the body of both birds.
Converted in DPP 4. Auto White Balance. Highlight and shadow adjustments and lowered the saturation of the reds. In PS I cropped a tiny bit, leveled, applied noise reduction to background. Also used NIK to do a tonal contrast and white neutralizer adjustment.