The local people (Pueblos, Apaches, Hopi and Navajo) use the collective "Indian" to refer to a group of nations, while calling themselves Zuni, Hopi, Havasupai, and so forth. "Native American" never caught on among them; it remains a construct of well-meaning European-descended Americans. On the other hand, one could spend a lot of time at various Indian Nation websites without finding much mention of the term "NDN".