"An ornamental covering or band for the head, especially one worn on ceremonial occasions."
(— Oxford Languages dictionary.)
Use this tag for ornamental headdresses, such as the Native American headdress. Most headgear that can be described as "'headband' but with lots of rigid(ish) decorations attached" or "hat/bonnet but truncated to only the middle 'band' part" are generally headdresses.
This tag can also be used as a fallback tag for ornamental headgear in general, but try to avoid using this tag for hats, helmets, hair ornaments, fake animal ears and simple ribbons.
The following tags implicate this tag: native_american_headdress (learn more).