Peacock Herl is one of the most iconic and effective materials in fly tying, known for its natural iridescence and fish-catching appeal. Taken from the eye of a peacock feather, each strand features a rich, shimmering mix of greens, bronzes, and golds that shift in the lightclosely mimicking the look of many aquatic insects and small baitfish. Its a staple in countless classic and modern patterns, from nymphs and wet flies to streamers and dry fly bodies.