figures started to kill off http://www.fws.gov/bisonrange/timeline.htm 30-60 million bison "Time Line of the American Bison" United States Fish and Wildlife Service https://www.fws.gov/bisonrange/timeline.htm https://www.fws.gov/bisonrange/timeline.htm "Time Line of the American Bison" "Time Line of the American Bison" estimated at 30-60 million says several hundred animals by the 1890s 325 wild bison left. American bison devastation Timeline of the American Bison U.S. Fish and Wildlife Service 700 bison remained https://www.fws.gov/bisonrange/timeline.htm timeline just hundreds also introduced cattle Timeline of the American Bison Time Line of the American Bison devastation number of bison https://www.fws.gov/bisonrange/timeline.htm hunted to extinction figures 85 free-ranging devastation American bison wiped out entire populations of animals as low as 23 http://www.fws.gov/bisonrange/timeline.htm