Maybe "Countries with Wild Cattle" or "Countries With Wild Bos/Boves" would be a better name for the quiz. The term Bison refers only to the American Bison (Bos Bison Bison) and the European Bison (Bos Bison Bonasus), not to Bos Gaurus, Bos Javanicus, Bos Mutus and Bos Sauveli.