quill feather meaning in Hindi

The peacock " tail ", known as a " train ", consists not of tail quill feathers, but highly elongated upper tail coverts.
It used small backed flint blades, from which its name derives ( " Federmesser " is German for " penknife, " referring to goose quill feathers ), and shares characteristics with the Creswellian culture in Britain.
Beebe based this theory on his observation that the hatchlings and embryos of some modern birds possess long quill feathers on their legs, which he regarded as an atavism; he also noticed vestiges of leg-wings on one of the specimens of " Archaeopteryx ".

noun.