Burk’s Hunchback Infrequens (HBI)
![HBI, PMD](https://flyfishingthesierra.com/wp-content/uploads/2023/12/hbi-1.jpg)
Burk’s Hunchback Infrequens (HBI)
Tying Instructions
Materials
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Hook | TMC 2487 #14-18 |
Thread | Uni-thread 8/0 Rusty Brown |
Weight | .015 Lead free wire |
Ribbing | Uni-thread 8/0 Rusty Brown |
Body | Rust Rabbit Dubbing Blend, 70% Rust Rabbit, 15% Hot Orange Rabbit, and 15% Olive Hare's Ear Rabbit |
Thorax | Rust Rabbit Dubbing Blend, 70% Rust Rabbit, 15% Hot Orange Rabbit, and 15% Olive Hare's Ear Rabbit |
Tail | Mallard Flank, dyed Wood Duck |
Wingcase | Dark Mottled Turkey Tail |
Legs | Mallard Flank, dyed Wood Duck |
![PMD Nymph](https://flyfishingthesierra.com/wp-content/uploads/2023/12/pmdnymph.jpg)
![Andy Burk](https://flyfishingthesierra.com/wp-content/uploads/2023/12/burk.jpg)
Andy Burk
Burk’s Hunchback Infrequens (HBI)
This fly was originated by Andy Burk for PMD hatches on the Fall River in Northeastern California. Andy worked as a guide and noticed a drop-off on the hits of Pheasant Tail Nymphs. He discovered that the trout became accustomed to the PTN and declined the offering. Part of the problem was translucency and a hunchback configuration. Andy resolved this by selecting a scud-type hook and utilizing a rust-colored rabbit dubbing that matched the nymphs color but also gave a fibrous translucency to the fly.
Baetis Colorations
The fly is used as a primary nymph pattern for PMD’s but can also be used for Baetis hatches. Use of a Scud-type hook is also found on John Barr’s Emerger and is excellent in producing the natural curvature of the nymph. Use of a rabbit blend is also found in many excellent nymphal patterns such as Kauffman’s Nymphs. The blends give a more realistic coloration and the rabbit dubbing will sink easily into the water column. Andy found the the naturals had a rusty orange color that had a translucent quality. By applying the dubbing in a somewhat loose wrap, the appearance of translucency is achieved.
Variations
![HBI Tan](https://flyfishingthesierra.com/wp-content/uploads/2023/12/hbivar1.jpg)
HBI-Tan
![Crystal HBI](https://flyfishingthesierra.com/wp-content/uploads/2023/12/hbivar2.jpg)
Crystal HBI
![HBI Baetis](https://flyfishingthesierra.com/wp-content/uploads/2023/12/hbivar3.jpg)