Talk:Thunderbird/@comment-70.192.14.97-20140112071200/@comment-25035274-20140717182050

It is, in fact, Native American. The Thunderbird appears in the mythology of Native cultures all over the mid-, north-, and south-west. So if it were a physical creature in the real world, it's natural range would have been from the Great Lakes and Great Plains up to the Pacific Northwest and down into the Southwest(Arizona, SoCal, New Mexico, etc). In other words, it's a pretty wide-spread legend amongst Native Americans.