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Exact red Copper John Nymph photographed on a U.S. dime, showing its bead, red wire abdomen, dark thorax, paired tails, and small scaleReal photo · Red Copper John Nymph

Nymph · guide 40

Copper John

John Barr's dense attractor nymph, built around a bead, splayed biot tails, wire abdomen, peacock-style thorax, flash-backed dark wing case, and soft legs.

Common size
#10–20 in the reviewed Orvis tying recipe, #12–22 in Umpqua's current John Barr range
Common colors
natural copper, red, black, green, chartreuse, pheasant-tail and Zebra variants only when named
Imitates
general mayfly nymph, small stonefly or other aquatic larva impression, high-visibility searching nymph rather than one exact species
How to recognize it

Confirm the whole architecture, not copper color alone: a metal bead; paired brown goose-biots splayed into a V; a tightly wrapped wire abdomen; a compact peacock-style thorax; a dark wing case topped with pearl flash; and speckled legs. The exact hero is a red-wire variation. Natural copper, black, green, chartreuse, jigged, rubber-leg, and steelhead forms must remain labeled.

Orvis documents John Barr beginning the design in 1993 and considering it finished around 1996. Umpqua's John Barr account traces the wire-body idea to the Brassie, describes the field-tested dry-dropper prototype, and credits the late Bruce Olsen of Umpqua with the Copper John name.
Exact red Copper John Nymph photographed on a U.S. dime, showing its bead, red wire abdomen, dark thorax, paired tails, and small scale
Real photo · exact pattern

Red Copper John Nymph

Exact source-identified red Copper John on a U.S. dime. Red is a documented color variation, not the universal body color; the coin is scale evidence and does not imply a hook size.

View
exact pattern — red Copper John macro on a U.S. dime
Color shown
red wire abdomen, dark iridescent thorax and wing case, and metallic bead
Look for
The coin-scale macro shows the metal bead, tightly wrapped wire abdomen, paired tails, dark thorax, wing-case area, and compact weighted profile of a source-identified red Copper John.
Open full-size photo ↗

On the water

Know when and how to fish it.

Use these tips as a starting point. The river, depth, insects, and fish behavior still decide the final presentation.

01

Why it works

  • The bead, lead underbody in the reviewed recipe, and dense wire abdomen help the fly reach depth rapidly in current.
  • Wire segmentation, pearl flash, peacock iridescence, and moving hen fibers create a visible attractor without claiming an exact mayfly species.
  • The broad nymph outline can serve as a weighted searching fly or help carry a smaller unweighted dropper, but rig layout and weight must remain explicit.
02

When to use it

  • As a fast-sinking searching nymph in riffles, pocket water, deeper runs, higher flows, or moderate stain when its weight and flash fit the lane.
  • In smaller sizes around Baetis or other mayfly-nymph activity only after matching the local insect and feeding depth.
  • As a point fly or dry-dropper anchor where multi-fly rigs, hook placement, and total weight are lawful and appropriate.
03

How to fish it

  • Dead-drift it through the target lane and maintain contact without dragging it faster than the current.
  • Choose bead, underbody, external weight, and leader for the depth before changing wire color; the exact hero does not reveal hidden ballast.
  • In a dry-dropper or tandem nymph rig, balance fly spacing and weight so the Copper John reaches depth without overpowering the upper fly or creating an unsafe cast.
04

Mistakes to avoid

  • Calling every wire-bodied bead-head nymph a Copper John.
  • Using copper ribbing alone to relabel a Pheasant Tail or other fiber-bodied nymph.
  • Treating red, natural copper, jigged, rubber-leg, and steelhead versions as one unlabeled recipe or sink rate.
  • Presenting the mixed two-fly hand photograph as a second clean Copper John macro.
  • Assuming the dime proves hook size; it proves scale only for the photographed red variation.

At the vise

Tie this version.

Classic natural-copper Copper John — reviewed Orvis form · intermediate

This guide follows the natural-copper Orvis recipe. The exact hero is red wire, and Umpqua documents red plus multiple other colors and later versions. Jig hooks, rubber legs, steelhead forms, different wing-case materials, and nonlead underbodies require explicit labels.

Materials

Hook
2X-heavy, 2X-long nymph or streamer hook, sizes 10–20
Bead
Gold Cyclops-style bead sized to the hook
Underbody
.015 lead wire in the reviewed recipe; use a lawful nonlead substitute where required or preferred
Thread
Black 8/0 or 70-denier thread
Tails
Paired brown goose biots
Abdomen
Brassie-size natural copper Ultra Wire
Thorax
Peacock herl
Wing case
Black Thin Skin below a narrower strip of saltwater-size pearl Flashabou
Legs
Speckled brown hen-hackle fibers
Finish
Five-minute epoxy over the completed wing case

Steps

  1. Seat a correctly sized gold bead behind the eye, add the reviewed lead or lawful nonlead underbody, and cover the transition with a smooth black-thread base.
  2. Carry the thread to the bend and tie paired brown goose biots so they form a centered, evenly splayed V.
  3. Secure brassie-size copper wire along the shank and build a smooth tapered underbody that will not leave gaps in the wire abdomen.
  4. Wrap the copper wire forward in tight touching turns to form a dense segmented abdomen, then secure and remove it cleanly.
  5. Tie a black Thin Skin strip and a slightly narrower pearl-Flashabou strip at the rear of the thorax area so both can later fold forward.
  6. Build a compact peacock-herl thorax behind the bead, keeping the hook gap and eye open.
  7. Tie speckled brown hen fibers on each side as sparse rear-swept legs.
  8. Pull the Thin Skin over the thorax, then the pearl flash over its center; secure both immediately behind the bead and trim the waste.
  9. Whip finish behind the bead, clear the eye and hook gap, then apply a controlled coat of five-minute epoxy over the wing case without flooding the legs or eye.

Tying sources: How to Tie the Copper John ↗, Copper John Barr's ↗

Common variations

Small changes can make a different fly.

One verified, non-AI exact CC BY macro shows a source-identified red Copper John at dime scale. A second licensed hand-scale frame explicitly identifies a Copper John beside a Flashback Pheasant Tail, and a clean American Pheasant Tail macro is an identity comparison only. The pair and comparison are not presented as extra clean Copper John angles.

Red Copper John

The exact hero shows a source-identified red-wire Copper John on a U.S. dime, making its bead, wire abdomen, tails, dark thorax, and small scale visible.
Colors shown
red wire, dark iridescent thorax, metallic bead
Weighting
A bead is visible; hidden underbody material and total mass are not established.

Copper John and Flashback Pheasant Tail scale pair

A source-named two-pattern frame places an exact Copper John beside a separately identified Flashback Pheasant Tail for scale and body-construction comparison.
Colors shown
copper, brown, dark thoraxes
Weighting
Both beads are visible; exact materials, mass, and hidden ballast are unknown.

American Pheasant Tail identity comparison

A clean separately named mayfly nymph whose fiber abdomen and wing case distinguish it from the Copper John's wire-body construction.
Colors shown
pheasant brown, copper rib
Weighting
Comparison only; not a Copper John.

Related patterns

Pheasant Tail Nymph ↗Prince Nymph ↗Perdigon Nymph ↗General Nymph Patterns ↗

How this guide was checked

Fly information and photo sources.

Guide checked on 2026-07-13. Every image has its own source and usage record. Natural insects and hand-tied flies can vary in shape and proportion.

Pattern sources

Orvis NewsHow to Tie the Copper John↗Umpqua Feather Merchants / John BarrCopper John Barr's↗Trout UnlimitedThe Copper John↗

Image credits