I photographed this Great Blue Heron at a local Wildlife Area where I used to live many years ago. It was on the shoreline early in the am along the path and I took a few photos and went on my way so not to bother the Heron. Image taken at 7am with a Canon 400mm DO lens, 1.4x Teleconverter on a Canon 1D mkIV. I had the lens f/stop set wide open @ f/5.6 to get a softer smoother background. Because I had a 1.4x Teleconverter on the 400mm DO lens my lens aperture wide open went from f/4 to f/5.6.