I captured this image during a bucket list trip to Yellowstone National Park last year. Buffalo were roaming freely near the visitor's center and it had just started to rain. I used a telephoto lens to keep my distance from these beautiful beasts. Canon 70D, ISO 4oo, 400mm, f5.6, 1/640, Canon EF 100-400mm f/4.5-5.6L IS II USM.