Hook 1x long dry fly, #6-18 (size 10 tied in the video)
Thread Any, but try to match the body 70-140 denier
Materials
Sparkle yarn Any, bright sparkle yarn (One strand pulled from a three-strand yarn, tied short)
Elk hair Natural deer hair (A small stacked bunch for the over-tail/underwing)
Palmer hackle Grizzly (bright blue grizzly in this variation) (One feather, size not critical)
Dubbing Any (an acrylic/coyote blend here) (About a two-inch noodle)
Calf tail White calf body hair (A fair chunk, thinned, for the wing)
Collar hackle Grizzly hackle (One feather about 1.5x the hook gap)
How to tie it
Lay a thread base on a size 10 1x long dry fly hook back to the start of the bend.
Tie in one strand of sparkle yarn as a short tail with two or three tight wraps, wrap forward over the butt and snip it off.
Move the thread to about the midpoint of the shank. Stack a small bunch of elk hair, measure it just a little longer than the sparkle yarn tail, and tie it in there with the tips pointing back. Catching it in up front means the flare happens at the front, not at the tail.
Take medium-to-loose wraps back over the elk hair, keeping it on top of the shank, then snip the front butts and smooth the area with a few wraps.
Tie in the palmer hackle at the rear of the body area. Orientation does not matter since it gets trimmed.
Wax the thread and dub a body about two inches of noodle long, stopping a bit short of where you would normally so there is room for a good collar hackle.
Palmer the hackle forward: one full wrap at the back, then open spiral wraps to the front. Secure with a couple of wraps and snip the excess.
Trim the palmered hackle flush on the top (and the bottom, and sides if you want). Trimming the top is essential so it does not prop the calf tail wing up.
Wax the thread, take a chunk of white calf tail, thin it out by about half, and tie it in trude style over the back with a pinch wrap and medium-tight wraps, then a couple of tight wraps forward. Snip the butts and spend a few wraps smoothing the underbody.
Tie in the collar hackle at the back of the head, perpendicular to the shank, run the stem forward, and take five or six wraps for a heavily hackled, high-floating collar. Tie off, snip the excess.
Sweep the barbs back, take a few wraps to open room at the eye, whip finish and add a drop of head cement.