"Wings, which cause most of the trouble in fly tying, are put on more for the fisherman than for the fish. Upright wings are a definite help to the fisherman in keeping an eye on his floating fly, and under very precise, flat-water conditions may help in producing strikes. Most often a trout will take a plain hackle fly as readily as a winged one."

"The Trout Fisherman's Bible" Dan Holland

Rick