Bighorn Ram, Yellowstone National Park, WyomingHere’s another one from the Rocky Mountain region, a bighorn ram. Winter tends to be the best time to see the rams as they leave their bachelor herds and come down from higher elevations to vie for females. They also come down seeking easier grass to uncover beneath the heavy snow. This headshot was taken in Yellowstone National Park. Nikon D800 with Nikkor 200-400mm lens (at 400mm) ISO 500, f/4 at 1/1250th of a second.