Dub a slightly buggy body of light olive sparkle dubbing from the bend to just behind the eye, a touch thicker at the front, and leave the thread at the front.
Prepare a wood-duck-dyed mallard flank feather with straight, even tips and tie it in at the front, dull side up, measured so it can reach back over the whole body with a generous tail extending beyond the bend.
Tie in a small burnt orange dry-fly hackle at the eye, good side forward.
Palmer the hackle back to the bend in open turns, wrapping the thread rearward together with it so the smooth-stemmed hackle can't slip.
Trim the hackle flat along the top of the body.
Pull the mallard flank back over the top as a full shellback, gather it slightly by pulling back; it needn't be perfectly flat. And tie it down above the barb point, the tips forming the tail.
Whip finish at the rear tie-down and put a dab of cement on it.
Trim the remaining hackle from the sides so the legs come off the bottom only.