American Big Game in Its Haunts is a classic American wildlife volume by George Bird Grinnell. Among the many questions asked of the naturalist by an inquiring public, few come up more persistently than "What is the difference between a bison and a buffalo; and which is the American animal?" The interest which so many people find in questions such as this must serve as a justification for the present paper, which proposes no more than to put into concise form what is known of the zoological relations of the animals which come within the special interest of the Boone and Crockett Club.