When Steven Bird told me about the brown drake hatch on the Upper Columbia, I began researching the internet for useful patterns. I found some Rene Harrop patterns that looked great, but I didn't have all the materials. Consequently, I designed my own drake patterns using the materials I had. The flies I tied are not unique. Each is based on established fly patterns and fly tying concepts. By the way, Steven's unique and effective fly patterns can be found in his new book, Upper Columbia Flyfisher
The fly below has its roots in the Parachute Adams and the Klinkhammer Emerger. It also incorporates a trailing shuck much like a Quigley Cripple or Craig Matthew's Sparkle Dun. I used ostrich herl for the body, poly yarn for the parachute, dun hackle for the wing, and ostrich herl and antron yarn for the tail. I like to use black poly yarn for my parachute posts because black shows up so well in the evenings and on overcast days. I also used black booby foam for the parachutes on some of these patterns. The foam wing is unsinkable.