The turkey biot BWO is a standard parachute dry fly. Noting much to it, other than a very effective fly that can be tied in any color variation to mach the hatch.
When the water is shallow, gin clear and the stream is flowing slowly you’re into trouble. You can’t choose any emerger pattern to fool the fish when thy turn selective on emerging mayflies (E.danica). The Danica Clear Water Emerger is a super pattern to fool fish when they are not easily fooled.
The Hare BWO Emerger is a go-to pattern for a lot of mayfly hatches, but works very well in several situations during a BWO hatch. It’s easy to tie and has a buggy appearance.
Gary La Fontaine is a master of observation and creativity. He designed the Sparkle Pupae series, but the La Fontaine mayfly halo emerger is often forgotten. It should not be.
The Marginata Profile Dun is really a variation of the Comparadun. It floats a bit lower in the water, and is thus best suited for those days when there’s no wind. The pattern yields crisp and well presented body profile.
The Claret Dun (Mahogany Dun), or Lepto’s as we call them in Norway, can offer fantastic opportunities. When the Marginata is hatching, I usually turn to this imitation of the Leptophlebia Marginata Comparadun.