It is only a matter of time before every fly fisherman encounters one of the sport's most frustrating scenarios: trout are rising everywhere, but they will not take a well-presented dry fly. This is a classic indication that the fish are keyed-in on the emerging stage of an insect, so the majority of feeding is actually occurring just below the surface in the film. The BFX Compara Dun Adams is the perfect choice for when the trout are looking for mayfly emergers, and this style of fly is designed for subtle presentations on "quiet" stretches of water.