Fly Tying

How to Tie the Morrish Mouse Fly

Sep 14, 2020 · 4 min read
Chandler CransBy Chandler Crans
Chandler Crans
Chandler Crans

Chandler Crans is a fly fishing expert and a former guide in Alaska. Whether he's reviewing the latest rods and reels, writing about where to fish,...

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How to Tie the Morrish Mouse Fly

Learn how to tie the Morrish Mouse fly pattern including step-by-step instructions, a video tutorial, pictures, and much more. Improve your fly tying skills here.

Materials:

We've put together a kit that contains all the materials you need to tie this exact fly pattern.

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Mouse fishing is popular across the western US and around the world (New Zealand comes to mind). Large brown trout do a lot of feeding at night and can be fooled on mouse patterns depending on the time of year and the conditions. In places like Alaska, fish feed on mice even in the high sun. There's nothing quite like seeing a large predatory fish explode on a mouse as it's waking through the water. Tune in as Jared takes us through the steps necessary to tie the Morrish Mouse, one of the most popular mouse patterns in all of fly fishing.



Step One:


Morrish Mouse fly tying: black hook clamped in vise with dark green synthetic mouse fur and brown tying thread on shank


Start your thread and tie in the tail of the fly. Trim the Zonker Cut Rabbit Hide to eliminate the hair on the front and middle of the hide. Leave a tuft of hair at the end. Measure it so it extends roughly 3x the length of the hook shank and tie it in at the bend of the hook.


Step Two:


Close-up fly tying vise holding hook with grey foam strip and black fur secured by black thread for Morrish Mouse fly


Next, trim the Fly Foam (or use a body cutter) to create the body of the fly and tie it in right in front of the tail. Trim a thin tag on one side of the tail to create a tie in point. This will help limit the bulk of the fly.


Step Three:


Morrish Mouse fly tied with cream deer hair and black tail clamped in a purple fly-tying vise on a rust background


Next, select a chunk of Deer Hair just thicker than a pencil, stack it, and spin it around the hook shank just in front of the foam. Catch the Deer Hair with two loose wraps then tighten those wraps down and use your fingers to help spin the hair around the hook shank. Use scissors to trim just the top section of the butts.


Step Four:


Morrish Mouse fly in vise with tan deer hair body, spiky hackle and black foam tail strips on hook, fly tying


Repeat Step 3 with another chunk of Deer Hair just in front of the last clump of spun hair.


Step Five:


Bushy tan Morrish Mouse fly made from soft rabbit/deer fur tied on hook in vise for fly tying tutorial


Continue repeating Step 3 until you have a full body of spun Deer Hair around the hook shank. Again, trim the butts on top of the hook shank after spinning each section of Deer Hair.


Step Six:


Gray foam Morrish Mouse fly with black band and pale deer-hair tail clamped in vise, fly fishing mouse pattern


Use a bodkin to spread the hair apart to make room for the Fly Foam that will come over the top of the fly. After spreading the hair, pull the foam over top of the fly and tie it in just behind the hook eye.


Step Seven:


Morrish Mouse fly tied with grey foam body, black thread band and splayed tan deer hair tail clamped in vise for fly fishing


Trim the excess foam to create the head of the fly. Also, be sure to use fine-tip scissors to trim any hair that may have gotten into the eye of the hook.


Step Eight:


Scissors trimming cream-tan mouse fur on a hook held in a vise during Morrish Mouse fly tying tutorial


Next, flip the fly over and trim all of the spun hair on the underside of the fly. This will create the body of the mouse and get rid of a lot of the bulk of the fly. You can trim the underside of the mouse however you see fit.


Step Nine:


Hands trimming tan deer hair on black foam Morrish Mouse fly with scissors and pliers, fly tying close-up


Finally, throw a whip finish and trim the head of the fly for a more lifelike, rounded profile.


Step Ten:


Black foam Morrish Mouse fly with tan deer-hair skirt held in vise, detailed fly fishing mouse pattern


And that's the Morrish Mouse! You can continue trimming the body of the mouse to make it look more lifelike or leave it as-is. Fish this at night or during the day (in certain parts of the world) for some explosive trout action.


Questions?


Give us a call here at the shop at (888) 413-5211 or email us anytime at [email protected].

Chandler Crans
Written by

Chandler Crans

Chandler Crans is a fly fishing expert and a former guide in Alaska. Whether he's reviewing the latest rods and reels, writing about where to fish, or helping a first-time angler pick the right fly line, Chandler combines real guiding experience with deep product knowledge and a genuine love of being on the water.

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