How to Tie a Cream Cahill Sparkle Dun
Matt Grobert ties a Cream Cahill Sparkle Dun on a size 14 TMC #100 dry fly hook.
Cream Cahills are quite visible even in low light, float well, and do a reasonable job of imitating both duns and spinners. These are a late-season variety of Cahills. They hatch in the last hour or so of daylight, and the spinners will begin to fall right at dark.