Rooster Furnace (neck) Hackle Feathers 4-6 inches are strung (sewn) together near the tip of the quill. The body of Rooster Hackle feathers are usually no wider than 1/2" and are soft and flexible, with very little fluff near the quill. These pretty furnace rooster hackle feathers come on a 1 yard string to make them easy to remove for individual use in hair or as jewelry. These feathers are approximately 4-6" long and are dyed amethyst.