Klinkhammer Blue Winged Olive 02/22/2019 Photo Album

Last winter I tied my first batch of Klinkhammer BWO’s. My post of 01/09/2018 provides background information on my motivation for adding this small fly to my inventory. It also presents a materials table that includes all the required ingredients to create this effective fly.

Four Completed Klinkhammers

The Klinkhammer blue winged olive was added to my fly box in response to several outings, when my old reliable CDC blue winged olive failed to interest trout during a baetis hatch. Most of these instances coincided with windy conditions, and I surmised that the trout selectively locked into emergers just below the surface. I speculated that the dangling abdomen of the Klinkhammer on a curved scud hook might be the solution to this perplexing situation.

A Nice Example

During the 2018 season I encountered several situations, when the CDC version was ineffective, and I resorted to my new weapon; the Klinkhammer BWO. I am pleased to report that the alternative fly was successful, and the best example occurred during a visit to the South Platte River in early April. My 04/05/2018 post describes this experience in detail.

CDC Feather Included

Given the sporadic success of the Klinkhammer I decided to increase my supply for the upcoming 2019 season. I surveyed my fly boxes and counted eight remaining from my tying efforts during the previous winter. I refurbished two that contained an unraveling parachute hackle and then added two new models to increase my beginning supply to twelve. Hopefully the Klinkhammer will justify its presence in my fly box during 2019.

CDC Blue Winged Olive 02/21/2019 Photo Album

I would hate to wade into a stream in Colorado during the spring or fall without a sufficient supply of small blue winged olive imitations. Furthermore, the track record of the CDC blue winged olive is superior to that of all the other flies, that I deploy during baetis hatches. My post of 03/11/2014 provides an excellent description of my history with the CDC BWO as well as an explanation of the pluses and minuses of this diminutive fly.

Tiny Size 24 CDC BWO

During recent years I encountered several situations where the CDC olive disappointed me. Most of these scenarios involved wind, and I theorized that the adults were swept off the surface before the fish could react. Since trout always seek the least amount of energy expenditure for their meals, they seemed to tune into emergers just below the surface. I adjusted to this scenario by tying the Klinkhammer BWO and the soft hackle emerger, and these alternatives provided improved success during windy conditions.

Despite these occasional hiccups I continue to rely on the CDC blue winged olive as my favorite baetis imitation. When I spot tiny mayflies on the surface of the stream during blue winged olive seasons, the CDC BWO is always my first option.

Close Up

Since I view CDC BWO’s as a key element of my fly box for duping trout during blue winged olive hatches, I performed my customary count, and I determined that I stocked adequate quantities of size 22 and 24. I sorted through my damaged fly canisters and uncovered a batch of various tiny flies. Many of these flies were midge larva in previous lives, so I stripped them down and converted them into CDC BWO’s. Two were comparable to size 22 and three approximated size 24. A blue winged olive hatch is certainly in my future, and I feel adequately prepared.