A plume is a special type of bird feather, possessed by egrets, ostriches, birds of paradise, quetzals, pheasants, peacocks and quails. They often have a decorative or ornamental purpose, commonly used among marching bands and the military, worn on the hat or helmet of the wearer. When used on military headdresses, the clipped feather plume is referred to as the hackle.[citation needed]
Background[edit]
Brightly coloured plumes are used by American coot chicks to entice their parents to feed them more food. It is a form of chick ornament.[citation needed]
References[edit]
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction