V21325 Aerial Drone of Bison Herd Bulls Playing Sparring Fighting South Dakota Summer by Pronghorn Productions in Bison , Mammal , Ungulate 4K (3840x2160) – $39 Full HD (1920x1080) – $29 HD (1280x720) – $19 Add to Cart Checkout Added to cart Aerial Drone of Bison Herd Bulls Playing Sparring Fighting South Dakota Summer $39