Connie commented that it seemed a rather flimsy fence for bison. Our friends Mike and Kathy Gear raise bison in Wyoming and we've been hearing stories for years about how they tear through fences when it suits them. It's not as clear as I'd like in this picture but there is a double hot-wire inside the barbed-wire fence that's doing the job here.
The lead bull for this herd is a huge and gorgeous animal and I was hoping for a good "buffalo nickel" portrait. Of course when I got in camera range he turned and walked straight away from me. Guess that means I'll just have to come back and try again.