We were at the gold mine to photograph picas, but the picas were not especially cooperative. However, a willow ptarmigan, a far less common subject for me, came by to show off his incredible camouflage, posing for a few photos.
As is often the case, the Canon EOS R5 with the RF 100-500mm F4.5-7.1 L IS USM Lens mounted was an ideal combination for this opportunity.