How do you say "головной убор" in English? It's a part of attire you wear on you head (a hat, a bonnet, anything, actually).
Eg. Индейцы носили головные уборы из перьев.

There are different words for any of these things, but how can I call them in general? And what word can I use for it if I don't know how this specific "головной убор" is called?