March Brown Fly

The American March Brown is a timeless dry‑fly pattern designed to imitate early‑season mayfly hatches. As one of the first major insects to emerge each year, March Browns signal the start of dependable surface activity, and this pattern has long been a favorite for matching those early hatches.

Typically tied on a size 8–16 hook, the fly features a body crafted from natural fur and feather materials—often brown hackle fibers, moose hair, and pheasant‑tail elements—to create a lifelike, mottled profile. Its traditional construction and versatile silhouette make the American March Brown a reliable choice whenever spring mayflies begin to show.