Fly Tying: Hollow Fleyes

Fly Tying: Hollow Fleyes

Tying the Hollow Fleye

HOOK: #1/0-#6/0 saltwater hook.
THREAD: Flat waxed nylon or fine clear (.006") monofilament.
BODY: Bucktail or other hair with flash (optional) at various intervals.
EYES: Tab prismatic eyes (1/4") or jungle cock eyes.
Bob Popovics'™ Hollow Fleye uses a thread wall (top) to push reverse-tied bucktail toward the bend of the hook. Thunder Creek-style flies (bottom) have thread wraps over the bucktail that restrict the fibers to a more narrow profile.
Photos: David J. Siegfried

Step 1

Clip a large bunch of bucktail as close to the hide as possible. To save time and material, cut off enough hair for several applications. Prepare the bundle by dividing the different lengths of bucktail into three or four separate piles. Hold the longest tips of one bunch tightly between your thumb and index finger and pull softly on the remaining hair to separate the longest fibers from the shorter ones. Repeat for each shorter length of hair. Re-align each length of bucktail so the tips are relatively even.
Attach the tying thread near the bend of the hook shank. With two loose wraps, tie in a bunch of long bucktail on top of the hook shank so the tapered tips face forward past the hook eye. Push down on the butts of the bucktail so the fibers radiate 360 degrees around the hook shank. Take six or more tight wraps over the butts to secure the hair, and then make numerous turns to cover the tie-down point. Apply a quick-drying head cement such as Sally Hansen Hard As Nails over the exposed thread wraps. Do not trim the hair butts. These exposed fibers are a fool-proof method of keeping the fly from fouling as they help keep the longer, tapered fibers in place.

Step 2

Slide your thumb and index finger down the hook shank from the eye toward the bend to open the cone of reverse-tied bucktail so the fibers stand out perpendicular from the shank. Push the hair toward the bend with either your fingers or an empty ballpoint pen tube and hold it in place. Weave the thread forward through the bucktail fibers and make the necessary number of thread wraps in front of the hair. The number and placement of thread wraps has a direct effect on the final appearance of the fly. A small thread wall allows the bucktail to flare and stand out from the hook shank at a sharp angle. The more thread wraps you make, the more the hair flattens along the hook shank.

Step 3

Add as many bucktail bunches as required to fill the length of the hook shank. A short-shank hook (shown above) often needs only three bucktail bunches. A long-shank hook may need five or more bunches. As you move forward along the shank, use shorter and shorter bucktail and increase the angle of the hair for a realistic baitfish profile. Add flash as desired.

Step 4

After the final bunch of bucktail and thread wall, tie in tab prismatic or jungle cock eyes. Whip-finish and apply head cement. After the head cement dries, hold the fly — with the hook-eye facing up — under warm running tap water to give the fly a beautifully tapered, fusiform shape. Place it on a paper towel to dry.

Bob Popovics' with guide Jaime Boyle. Photo: David W. Skok


One of the greatest fly tying challenges has always been creating a large nonfouling fly, with a profile similar to a natural wide-bodied baitfish, that is easy to cast and fishes well. If you limit yourself to the use of natural materials, the task becomes more difficult.



It comes as no surprise to saltwater fly tiers that this challenge has been met by Bob Popovics, whose fertile mind spawned such innovations as the Surf Candy, Siliclone, and Bob's Banger. This isn't the first time Popovics has struck gold in the big-fly department. The Bucktail Deceiver and the Spread Fly can both be tied to lengths in excess of 10 inches, and his Cotton Candy pattern was specifically designed to be a large, castable, full-profile, and nonfouling pattern. The Hollow Fleye is a totally new archetype that gives saltwater fly tiers greater creative control using natural materials.

Skin and Bones


The Hollow Fleye is an expansion of Popovics' Bucktail Deceiver. Rhode Island fly tier Kenney Abrames was impressed with the Bucktail Deceiver, and several winters ago he urged Bob to continue developing this pattern. Popovics decided to find a construction method that used less material to build a fly with a large profile. He soon discovered a new technique that allowed him greater control over bucktail than he previously thought possible. He found that by tying the bucktail on the hook in reverse and then propping it rearward with a wall of thread, he had infinite control over the angle of the bucktail. This technique allows him to sculpt baitfish patterns using varying lengths and angles of bucktail. When tied in this manner, the cone of bucktail forms an outer layer that gives the fly its hollow appearance and name.

The Technique


Popovics' Hollow Fleye design is based on tying bunches of bucktail (or other hair) on the hook shank in the opposite direction of the hook bend and propping it rearward at various angles with a thread wall. This method should not be confused with the reverse-tied bucktail flies conceived by Carrie Stevens and popularized by Keith Fulsher's Thunder Creek series. Both the Hollow Fleye and reverse-tied bucktails tie the bucktail in reverse on the hook shank. However, Thunder Creek flies have a band of thread behind the original bucktail tie-in point that binds down and restricts the hair to a single, more narrow shape. The Hollow Fleye has thread wraps only in front of the original tie-in point, which allows more control of the hair and the shape of the fly. Do not wrap back over the hair when creating the thread wall of a Hollow Fleye unless you want the hair to lie flat against the hook shank.

Photo: David W. Skok

To create a tapered fly, you must surround the hook shank with at least three bunches of bucktail in progressively shorter lengths. A short-shank hook typically requires three bucktail bunches to fill the shank; therefore, each bunch of bucktail should be approximately two-thirds the length of the previous bunch. Long-shank hooks require at least five bucktail bunches, and the taper must move along at a slower pace to maintain a proper profile. I make each bunch about three-quarters the length of the previous bunch or longer when tying five bunches on a long-shank hook.

The angle of each bunch of hair controls the shape of a Hollow Fleye. The thread wall in front of the tie-in point allows you to manipulate the angle of the hair. The more wraps you make, the more the hair lies back along the shank for a slimmer profile. Fewer wraps allow the hair to flare more, creating a wide-body profile.

As a rule, the first bunch of bucktail should lie tighter to the shank than subsequent bunches to imitate the tail and slimmer profile of the rear of most baitfish. Each bunch should progressively flare outward more than the previous bunch. Keep in mind that the angle of the first bunch determines how the remaining bunches should stand. The last and shortest bunch of bucktail should stand at a 45-degree angle relative to the hook shank for a tall, full-profile baitfish.

Size and Shape

The size and shape of a Hollow Fleye is limited only by the length and consistency of the hair you use. Long, 7-inch bucktail with a #4/0 long-shank hook can produce 10-inch Hollow Fleyes. Other natural or synthetic fibers produce even longer flies. I have tied and fished Hollow Fleyes made from polar bear hair, ostrich herl, and Unique Hair with good results.

Popovics prefers bucktail over other materials because the naturally tapered tips impart a lifelike motion to the fly. Bucktail is available in most fly shops and is inexpensive.

Bucktail selection also affects the bulk of the fly. Bulky flies are best tied with crinkly hair. Use fine, straight bucktail for slimmer imitations. The combination of hair selection and angle determines the final profile of the fly.

Hollow Fleye can be tied to imitate everything from baby bunker to anchovy. The fly uses reverse-tied bucktail to flare the hair and create breadth and depth without bulk. Photo: David W. Skok

Fleye Density

For dense, fully dressed flies, the butts of each new bucktail bunch should touch or come close to the previous bunch so the hook shank is not exposed. This requires more hair and creates a fly with a strong silhouette. For a sparse Hollow Fleye, use fewer bunches of hair spaced at less frequent intervals. You may use the open spaces between the hair bunches for other materials. Slide a bead or cone on the hook shank prior to tying and then sandwich it between two bunches of hair. Place the bead between the bunches closest to the hook eye to give the fly a seductive vertical action in the water, like a Clouser Minnow. You can also spin coarse, hollow bucktail from the base of the tail between the bucktail bunches to increase the fly's opacity and buoyancy for surface fishing and add an attractive wiggle when fished on a sinking line.

Combine the Hollow Fleye technique with other tying styles to imitate various food items with different shapes and sizes. You can make a delicious-looking Hollow Squid using the same monofilament extension as the Shady Lady Squid. Combine the Hollow method with the feather tails of flies such as Lefty's Deceiver, Semper Fleye (saddles tied in the round), or flat-wings to produce long, sleeker flies. I've done well with hollow-tied bucktail in place of ostrich herl in both Siliclones and Snake Flies. I've also used it to tie weedless, wide-

profile Bendbacks. The Hollow Fleye method is an option for any pattern that normally uses a traditionally tied collar. One of the cosmetic benefits of this style is the tiny, almost nonexistent head.

Simple one-color Hollow Fleyes are effective, but this tying method allows you to easily add other colors. Replace the primary color with a different color or shade of bucktail in the last bunch to create a gorgeous two-tone effect reminiscent of classic swimming plugs. Alternating bands of color create a subtle blended effect. Add realism by using contrasting colors on the top and bottom to imitate the natural contrast of baitfish.

Hollow Fleyes work well with or without eyes. They can be tied on short-shank hooks with radically flared hair (above, middle) or on long-shank hooks with less-flared hair for a long, fusiform shape. Photo: David W. Skok

On the Water

The Hollow Fleye is a streamer, so all the traditional streamer-fishing techniques apply. Current speed, surf level, baitfish types and densities, and other factors all come into play when choosing a presentation method. Fish them dead-drifted, with a rapid strip-retrieve, slow and low on a fast-sinking line, or streaking across the surface on a floater.

As this style is tied "in the round" (where the material is equally distributed 360 degrees around the hook shank) it rarely fouls and always keels properly. Like Jack Gartside's Soft-hackle Streamer, it still looks natural when fibers slightly spin on the hook shank. It is very unusual for a Hollow to foul so badly that the hair catches the bend and ruins the fly's profile and action. Because it fouls so infrequently, the fly only needs occasional preening when fishing.

Like all good fly designs, the usefulness of the Hollow Fleye design travels well beyond the striped bass and bluefish of the East Coast. It fools just about any saltwater or freshwater fish that preys on large food items. Marquesas jacks go wild for a quickly retrieved Hollow, and I had no trouble convincing Florida Keys bridge tarpon to devour various sizes and colors of the Hollow Fleye. No Manitoba northern pike would let a tasty Hollow slip by, and the fattest largemouths have a penchant for shad and big shiners. Wherever you like to go giant hunting, the Hollow Fleye design should work for you.

David Skok is a professional fly tier and fly-fishing guide. He lives in Boston, Massachusetts.

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