StreamersEgg Sucking Leech
The Egg Sucking Leech is a classic streamer pattern that's been proven effective for many species. It's essentially a Woolly Bugger with a brightly colored bead at the head, which mimics an egg. This attracts predatory fish that are looking for a high-protein meal.
Spring, Fall
Beginner
Trout, Steelhead
Apr 2025
Overview
A proven attractor streamer, this pattern combines a long black rabbit or marabou body with a fluorescent orange or pink bead or dubbed “egg” at the head. The contrast of dark body and bright head draws aggressive strikes from trout, salmon, and bass.
Materials
Hook: Tiemco 5263, #4-#10
Bead: Bead, 1/8-inch, fluorescent fire orange.
Thread: 6/0 or 140 Denier, brown.
Tail: Dark-brown marabou blood quill.
Body: SLF Prism dubbing, chocolate brown.
Behavior & Presentation
Natural Behavior: Leeches swim with distinctive vertical undulations, stretching and contracting in sinuous patterns while resting motionless on structure between feeding. Drifting fish eggs represent ultra-high protein meals requiring zero chase effort from opportunistic feeders.
Where Trout Eat It: Mid-column to bottom in pools, tail-outs, and spawning gravels where leeches and eggs occur.
How to Fish It: Present with dead drift, swing, or strip retrieve to match versatile leech movement and egg drift.
Best Water: Work tail-outs, spawning gravels, and deep pools where eggs drift and leeches patrol.
Strike Type: Feel aggressive grabs as predators respond to dual trigger of undulating leech and bright egg.
Fishing Strategy
Rigging Suggestions: Use a sink tip or weighted line to get this fly down deep where the big fish are feeding.
Seasonal Timing: Effective during peak feeding periods when water temperatures and conditions support active feeding behavior.
Pro Tips: This fly is intended to sink. The brightly colored bead makes it highly visible in a variety of water conditions, while the marabou tail gives it a lifelike swimming action.
Entomology
Leeches swim through the water column with distinctive vertical undulations—stretching long and contracting short in a sinuous pattern—while also resting motionless on submerged logs and vegetation between feeding periods. Fish eggs drift freely in spawning gravels and tailouts during salmon and trout spawning season, becoming dislodged by current and representing an ultra-high-protein, easy-to-digest meal that requires zero chase effort. The combination of a mobile leech with a bright egg head mimics the opportunistic scenario of a leech encountering drifting roe, creating a dual-trigger pattern that appeals to both egg-feeding behavior and predatory instincts toward dark, undulating prey.
- Organism Type
- egg
- Life Stage
- egg