A rework (hopefully for the better), I am not sure if I previously submitted this particular image, but you will have seen similar.
Image captured at Gros Ventre Yellowstone 2016.
Canon EOS-1D X
Focal Length : 400.0mm (100-400) L IS II
ISO : 2500
Exposure compensation : +0.3 EV
Shutter : 1/250 sec
Aperture : F5.6