The scientists at MFC have developed a half-rooster/halfduck hybrid, that has produced a CDC hackle that we call Henry”s Fork Hackle. Ultra-light Henry’s Fork Hackle is manufactured in a completely different manner than the original Henry’s Fork Hackle, eliminating the bulky core as well as shortening the fibers just slightly. For any CDC flies from # 14-24, this is the best product available that makes tying super easy and quick. Great for bodies and soft hackles.