Offline — showing saved data
Pattern Library
Cow Dung fly pattern
Wet · #257 of 532

Cow Dung

The Cow Dung is an old traditional wet fly with a buggy olive-brown body and mottled wing, useful as a general emerger and drowned-insect pattern for trout. It targets Cow Dung fly pattern, classic wet fly, traditional trout fly, and best buggy wet flies.

Imitates: Drowned mayflies, caddis, and general aquatic insects

Quick Reference

Best Sizes
#10-16
Best Season
Spring through fall
Best Conditions
Riffles, seams, soft hackle water, and cloudy days
Water Temp
45-65°F
Recommended Tippet
4X-5X

How to Rig It

Fish down-and-across as a single wet or in a traditional wet-fly team.

How to Present It

Let it swing slowly and pulse in the current; do not retrieve too fast.

Why It Works

The mottled natural tones suggest several insects without committing to one hatch.

History

Despite the odd name, the Cow Dung is a long-standing traditional wet fly from the classic era of trout fishing.

Pro Tip

Use it as a searching wet fly when bugs are present but you cannot pin down the exact hatch.

Frequently Asked Questions

Is the Cow Dung fly a real trout pattern?+

Yes. It is a historic wet fly with a strange name but a very practical buggy profile.

Try the Fly Advisor

Not sure if Cow Dung is right today?

Get a fly recommendation based on live water temp, flow, sky, and time of day for any river in the US.

Open Fly Advisor
MapFly GuideStrike ZoneReportsLogTools