In 1930, the University of Buffalo Bison had been playing football for 36 years.
The Buffalo Bison also played baseball in the International Association (1878, 1887-1888), the National League (1879-1885), the International League (1886-1969), and the Players League (1890).
The Buffalo Bison also played football in the NFL (1924-1925, 1927-1929).
The Buffalo Bison also played International Hockey League Hockey (1928-1936).
I love the current Bull logo (2006-present) via UB Athletics
To differentiate themselves, the University changed their athletic nickname from Bison to Bulls. The Bison would live on as an American Hockey League team (1940-1970) and as National Basketball League and All-American Football Conference teams in 1946.
Unfortunately, in 1960, the Buffalo Bills were founded in the American Football League; leading to 50 years of brand confusion between the Buffalo Bulls, and the more well known Buffalo Bills.