From a trip to Yellowstone a couple weeks ago. This mother and kid mountain goat were hanging out (for several days) on a cliff right above the road in the Golden Gate. 5D4 with 300 f2.8L IS and 1.4x iii extender (on a tripod).
Bison backlit at sunset, Antelope Island State Park, Utah (USA).
Canon 5D4, Canon 300 f2.8L IS with 1.4x iii extender, handheld.
Aperture Priority at f5 with -1/3 stop exposure compensation, resulting in 1/3200 second at ISO 400.