Most dry fly anglers will know this particular fly. The iron blue dun. It’s a small may fly that can appear throughout the year. It’s one of the very few patterns that can be fished in the early spring or late autumn. There have even been reports of this fly hatching in the winter. So I good all-round fly one could say.
There are many different patterns that imitate this fly. My favorite one is with CDC feathers. They float like a cork and fish seem to like ‘em!
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