Blue Dun

The Blue Dun is a classic dry fly pattern designed to mimic early-season mayfly hatches. Known for its dark thorax and upright wings, it’s effective for imitating species like Blue Winged Olives, Hendricksons, Blue Quills, and Quill Gordons. The fly’s wings are typically made from mallard feathers, enhancing its realistic presentation on the water.

Observe Wing Position: Fish tend to strike more readily when the Blue Dun’s wings are fully upright, simulating an emerging mayfly.