After the Egret flew off from the shoreline near me, it landed on the opposite shore and started feeding. I walked along the shoreline as far as I could, but the Egret was still about 90 feet from me. Even with the 400mm reach of the 100-400 lens, the above image required cropping - I've been strongly considering getting a 1.4x and/or 2x teleconverter to increase my reach for bird photography. It'd be pretty hard for me to justify the stratospheric expense of either the Canon 500 or 600 mm "big guns"! I had my recent purchased Monopod with me (Bogen-Manfrotto 449) and decided this would be a good time to try it out. Canon 100-400 at 400 mm, ISO 400, f/5.6, 1/640 second, Center-Weighted Metering, EV +1, Monopod used.