White River Fly Shops high-quality Hen Neck fly-tying material offers long, narrow fibers with rounded tips and flexible stems which make it ideal for a wide variety of both wet and dry flies. This Hen Neck hackle cape provides fly tiers with plenty of fly-tying fibers in a wide variety of different lengths. Color: Grizzly. Cancer and Reproductive Harm- www.P65Warnings.ca.gov.