I photographed this juvenile eagle in Vancouver area with my friend Henrik Nilson, I didn't have much light to work with but was able to pull off a few frames when the eagle flew towards us.
Shot with 1D-X and 300 f/2.8 II + 2X III. ISO 3200 (+1EV in post). f/5.6 at 1/1600sec. The AF capability of this rig in low light is nothing short of amazing. Processed with DPP 4.15