StreamersZonker

The Zonker pairs a pearl Mylar tubing body with a white rabbit strip laid over the back and trailing past the bend, so the whole fly breathes on the swing. Lead-free wire under the tubing gets it down, and a red saddle hackle collar at the head adds a gill flash that trout and bass both key on.

Season
Year Round
Difficulty
Intermediate
Target Species
Trout, Bass
Updated
Apr 2025
Zonker fly pattern - imitates Baitfish, Leeches tied for Trout, Bass

Overview

Built on a 3X-long streamer hook in sizes 2 through 6, the Zonker is as much a gluing job as a tying one. The Mylar tubing is secured front and back and locked down with superglue or UV cure resin, then the rabbit strip is tacked at the head and again at the bend so it cannot foul the hook.

Red thread underneath shows through the pearl braid as a hot core, and the red saddle hackle wound at the head reads as gills. Fish it on a swing or strip it back in short pulls. The rabbit strip keeps working at rest, which makes the pause as productive as the retrieve.

Where to Buy This Fly

We only link to fly shops we trust. Some links are referral links, which may earn us a commission at no extra cost to you.

Materials

Hook:
3X-long streamer hook (here a Lightning Strike SN3), sizes 2-6
Weight:
.020 lead-free round wire
Thread 1:
6/0 or 140 Denier, red
Body:
Mylar tubing, medium, pearl
Adhesive 1:
Superglue or UV Cure Resin
Back and tail:
Zonker strip, white
Adhesive 2:
Superglue or UV Cure Resin
Thread 2:
8/0 or 70 Denier, black
Hackle:
Saddle hackle, red
Head:
Black thread
Adhesive 3:
Head cement or UV Cure Resin

Behavior & Presentation

Natural Behavior: Baitfish dart and glide erratically when threatened, their bodies flashing as they change direction suddenly.

Where Trout Eat It: Predatory fish ambush from structure and deep water, striking fleeing baitfish in rivers, lakes, and streams.

How to Fish It: Strip retrieve with sharp pulls and pauses to imitate darting, panicked baitfish escaping predators.

Best Water: Work undercuts, drop-offs, and deep runs where predators hold. Channel swings and current breaks concentrate baitfish.

Strike Type: Feel violent strikes or sudden weight as predators attack aggressively and turn with the fly.

Fishing Strategy

Rigging Suggestions: Use 1X-3X fluorocarbon tippet (10-15 lb test) on 7-9 foot leaders. Sink-tip lines (Type III-VI) or full sinking lines are essential for reaching optimal depths. Adjust line density based on water speed.

Seasonal Timing: Effective with peak periods March through May and September through November. conditions (water temps 42-55°F) and feeding periods (48-58°F) produce the most aggressive strikes.

Pro Tips: The rabbit strip tail provides exceptional swimming action. The mylar body creates flash that attracts fish from distance in stained water.

Entomology

Small baitfish and leeches exhibit flowing, continuous movement whether actively swimming or dead-drifting in current, their flexible bodies creating lifelike motion that stands out against static surroundings. Predators strike these organisms because their sustained movement signals living prey, and their size makes them worthwhile targets that won't require repeated feeding.

Organism Type
baitfish
Life Stage
general

Pattern Characteristics

Intermediate Difficulty
Trout, Bass
Stillwater
Moving Water
Year Round
Imitates: Baitfish, Leeches
Essential Pattern
Rocky Mountain
Yampa River
active-retrieve
strip-retrieve
attractor
searching-pattern