Origin of herl
Examples from the Web for herl
Wind silk floss (E) over the herl about half way up the hook.
Twitchbell—inside of lightest part of Starling's quill feather for wings, brown hackle for legs, brown Peacock's herl for body.The Teesdale Angler|R Lakeland
Finish body with herl (D) wound tight against the back of the wings.