What is plume on helmet?

A plume on a helmet is a decorative ornament made of feathers or other materials that is attached to the top of a helmet. It was often used by soldiers and knights in medieval times to provide a means of identification and to add to the imposing appearance of their helmet. Plumes were also worn by officers to signify their rank and status. Today, plumes are still used for ceremonial purposes, such as in military parades, and can be found on modern helmets worn by marching bands and other performers.