Montana Fly Co Shaughnessy’s Nyacca Baitfish

When the bluewater predators are keyed on baitfish, nothing sells like the Nyacca. Developed by Baja legend James Shaughnessy (FlyFishMex / Beulah), this fly is built to trigger strikes from roosters, billfish, dorado, GTs, tuna—anywhere fish chase schooling bait.

Key Features & Benefits

• Realistic baitfish profile — The fly’s layered, feather-tail construction gives subtle undulations and lifelike movement even on long slow strips. 
• Fast to cast / easy handling — Materials are selected to shed water, reducing drag and allowing quick recovery on every cast. 
• Versatile color & size options — Available in Olive/White, Tan/Cotton Candy, and “Holy Mackerel” versions. 
• Built for big-game saltwater use — It’s one of the “go-to” flies for casting to billfish, and a proven pattern for roosterfish in Baja and inshore/nearshore predator work. 
• Durable construction — Designed to hold up through repeated strikes, while maintaining the action that entices big fish. 

Use Cases / Angling Scenarios

• Cast to cruising roosterfish working bait in the shallows.
• Strip or “slow roll” the fly in deeper structure where billfish or tuna are feeding on dispersion.
• Fish it behind poppers or plugs as a “trailer” to mimic wounded baitfish.
• Drop back into cleaner water after heavy topwater work as a fallback baitfish imitation.