Buffalo Bills football. what are Bills?

Question

Update:

Rams, Ravens, Patriots I get. 

Answer 1

It's a reference to the tall tale of Buffalo Bill.

Answer 2

It refers to the paper currency used by American bison. They have a very complicated economy.

Answer 3

"Bills" are actually a Bison. . . . . . University of Buffalo are the Bison, therefore, the Bills are BISON

Answer 4

Like Bucs?............

Answer 5

A duck bill is the only obvious reason 

Answer 6

They’re named after the famous Buffalo Bill.

Answer 7

It's a play on words.  William "Buffalo Bill" Cody was a famous Wild West figure.  So they took "Bills" as his name.

Answer 8

Named for William 'Buffalo Bill' Cody.  An early football program from when the Bills were in the All American Football Conference (1946-49) features a cartoon version of Buffalo Bill riding a charging buffalo into the end zone.  The Bills were the Bisons in 1946 and the Bills after that. They did not join the NFL when the AAFC merged with the NFL in 1950 (but the Cleveland Browns, San Francisco 49ers and Baltimore Colts, AAFC teams, did), but when Ralph Wilson got one of the original AFL franchises in 1960, it was the Bills.

https://www.ebay.com/itm/1947-Football-Program-Buf...

Answer 9

Named for:  Buffalo Bill Cody.

Interesting side notes:

 *  Their original name was the Buffalo Bison which is, well, strange, but I think it would have been great to have that unique name/history today.

 *  This makes the Bills and Browns two NFL teams named after an individual.

Answer 10

“Buffalo” William “Bill” Cody, an American hunter and showman.  The Bills are named after a real person