Stu's Ostrich Mini-Intruder Fly

Stu's Ostrich Mini-Intruder packs a lot of action into a compact profile. Designed by Stewart Foxall, this fly targets steelhead, salmon, and trout that might shy away from larger, bulkier patterns. It is built on a 27mm shank with a trailing hook, which gives you short strikes and solid hookups. This pattern is a must-have for your swing box when you need a smaller presentation that still pushes water.

What It Imitates

This pattern is an attractor fly that does not copy one specific insect. Instead, it mimics the general shape and movement of aquatic life like prawns, shrimp, or small baitfish. The ostrich herl fibers pulse and breathe in the current to look like a swimming creature.

How To Use It

Fish this fly on the swing. Cast it down and across the current and keep a tight line as it sweeps across the run. The current will do the work and make the materials dance. You can fish this on a light spey rod, a switch rod, or even a single-hand rod because it is not too heavy. It works well in tailouts and softer currents where fish often rest.

When To Use It

This mini version shines when the water is low or clear. It is also a smart choice for fishing highly pressured runs where fish have seen many large flies. Bright colors like Pink or Orange work well for aggressive fish, while darker colors like Blue/Black are better for overcast days or spooky fish.

Why We Like It

We love how the ostrich herl moves in the water. Even at a small 27mm size, it creates a lifelike illusion of bulk without being heavy to cast. The brass dumbbell eyes get it down to the strike zone quickly. It is tied by Aquaflies, so you know it is durable enough to handle hard fights.

Comparisons

Stu's Ostrich Mini-Intruder vs Stu's Ostrich Intruder (Standard)

The main difference here is size. The Standard version is much larger and pushes more water, which makes it better for high or dirty water conditions. The Mini is tied on a shorter 27mm shank. Choose the Mini when you need a stealthier approach in clear water.

Stu's Ostrich Mini-Intruder vs Hobo Spey

Both flies are excellent for swinging, but they use different materials. The Hobo Spey relies on marabou and hair for a flowy, translucent look. The Stu's Mini uses ostrich herl, which has more individual fiber movement and a distinct vibration. If you want a fly with a pulsing, spiky profile, choose the Stu's Mini.

Stu's Ostrich Mini-Intruder vs Egg Sucking Leech

The Egg Sucking Leech is a classic pattern that rides on a single hook. The Stu's Mini is a modern shank-style fly with a trailing hook. This design prevents fish from using the hook leverage to throw the fly. The Stu's Mini also has far better movement in the water than a standard leech.