Mount the wet fly hook and lay a black thread base back to where the barb would have been.
Snip a little red wool yarn and run it through a coffee grinder to make dubbing, then wax the thread and dub a short, slightly tapered red butt at the rear of the shank.
Move the thread forward a touch and tie in three or four peacock herls; leave the brittle ends long, take three or four wraps over them, then simply snap the ends off.
Take the thread back to the front of the red butt, leave the bobbin hanging about halfway along the body, and wrap the herls forward together up to the 80% point; the hanging thread helps corral the strands if they splay. Tie off and trim.
Prepare a light brown hen hackle with a small tie-in point, mount it concave side toward the hook, fold the stem back and take a few wraps over it so the thin stem does not pull free. Trim the tip.
Take about three turns of the hen hackle for the collar, tie it off and trim.
Stroke the collar fibers back, lick your fingers to control them, and take a few wraps to build the front of a wet fly head.
Cut two matched slips of mottled turkey, set them slightly splayed on either side of the shank so they marry over the top, and secure with a loose pinch wrap. Check the position, adjust while you still can, then lock them in with several firm wraps.
Trim the wing butts, tidy the head with a few more wraps, whip finish, snip any stray fibers close and add head cement.