The Buffalo Bisons are a minor league baseball team based in Buffalo, New York which plays in the International League (IL). They are the Triple-A affiliate of the Toronto Blue Jays . The Bisons play at Coca-Cola Field, located in downtown Buffalo. The current incarnation of the Bisons was founded in 1979, when Buffalo ownership interests purchased the Jersey City A's of the Double-A Eastern League and moved the team to the city.