Tying a Large CDC Olive Mayfly with Davie McPhail

Materials Used.. Hook, Fulling Mill All-Purpose Medium size 10 Thread, Uni-8/0 Olive Tail, Pheasant Tail Fibres Rib, Small Oval Gold Tinsel Body, Olive Seals Fur or Sub Wing, Natural CDC and Grey Mallard Flank Head, Orange Seals Fur or Sub