Guess The Mystery Fly - Clue #3

Here is today's clue. Please remember I need exactness in the identity of the Mystery Fly.  The winner must be exact in size and main color (if any) of the Mystery Fly.

Here is today's clue.  "One of the materials used in the construction of this fly is pheasant tail fibers."

Good luck. Email you guess to fishingcowboyblue@yahoo.com

Guess The Mystery Fly - Clue #2

It is common for the Mystery Fly to be used in Czech Nymphing. 

Send your answer to fishingcowboyblue@yahoo.com

Guess The Mystery Fly Classic - Clue #1

Clue #1

The Mystery Fly has western roots or origin so to speak.

Send your answer to fishingcowboyblue@yahoo.com