Bison Burgers (Box)"Your backyard barbecue just became the talk of the town. The Quick Facts on Bison Burgers 100% Canadian bison Layer packed and prepared by the box Theres just something special about handmade burgers. When you order from The Butcher Shoppe, your box of burgers will arrive fresh (never frozen) using 100% Canadian bison. In order to reduce the amount of plastic waste and to make it easy to freeze, our handmade burgers are now layer packed and prepared