It was a marvelous first day in Yellowstone National Park yesterday. The morning started out on the cool side with below freezing temperatures but as the sun came up it warmed quickly. We were happy to see hundreds of Bison in large herds as we drove through the park. Some visits, we’ve seen almost no Bison. This bull emerged over the ridge into the sunlight, still covered with a light layer of frost from the chilly night air. What was left on his flanks quickly disappeared in the morning sun.