Anglers eagerly await the famous "Salmon Fly" hatch which is most commonly found on rivers in the Western part of the United States. When these large stoneflies hatch, it creates a feeding frenzy that fish, birds and even animals take part. Stoneflies are an easy meal with excellent food value and they will pull even the largest fish out of there hiding places. TheSofa Pillow, Salmon Fly, Stonefly Adult Fly is perhaps the most popular salmon fly pattern being used today. The large amount of hackle and elk hair used on this fly make it float very well. These materials give it a unique impression on the water, hard to match with synthetic materials and fish take this pattern vigorously.