Bison
Yellowstone National Park, Wyoming
This guy was separated from the group in the previous post and on the opposite side of the road. Since he was actively grazing, I decided to focus on him. He soon decided to rejoin the group and moved on to the road for easy travel. I got several frames with a 500mm lens before I decided he was too close to me and packed up my tripod and headed for the bus! (Don't be this close if all you have is a cell phone camera!)