[Whilom]

I suggest the Washington Native Americans, with Natcans for use in sports headlines.

[JennysCool]

There certainly are a lot of Nutcans in that town...

[Fresh Wind]

I suggest the Washington Native Americans

No good. Some might find the word "Americans" offensive.

[Clioman]

The similarities are really pretty scary when you think about it...other than that fluke at the Little Big Horn, the Washington Redskins and the other kind seem to have very comparable win/loss records.