Don’t know if they still use it or if it is politically correct but we use to say Indians- dot not feather or feather not dot. I worked for a company that did business with feather Indians when the dot Indians were beginning to buy and start many businesses here so we had to clarify some way and that was acceptable then. Of course a lot of things were acceptable then.
The confusion is that the natives here were called Indians to begin with, no idea how that came to be. I have a set of Colliers Encylopedias from the 1920s and they are referred to as Aborigines in it. Which I found very interesting, by definition that is a correct term but I guess they didn’t like it. I did not know they were ever called that.
My mother was Cherokee and never called herself Indian or Native American, just Cherokee. I am friends with some Navajos and they do the same...they call themselves Navajo or Dine...not Native American.
The original European explorers were looking for a shortcut to Asia and thought they had landed in India.