There are a lot of bison at Vermejo Park Ranch, and it is just a blast to watch them.  The young bulls are especially fun. Since boys must be boys, the young bulls butt heads a bit to test each other out. It is quite a show!

Bison bulls locking horns and tussling, Vermejo Park Ranch, New Mexico, USA.

Bison bulls locking horns and tussling, Vermejo Park Ranch, New Mexico, USA.