Beadhead San Juan Worm

The Beadhead San Juan Worm fly pattern is a type of fly commonly used by anglers as a bait to catch trout and other fish species. It is a simple and effective pattern that imitates a worm, which is a natural food source for many fish.
The San Juan Worm fly typically consists of a hook, a bead, thread, and a piece of chenille or yarn that is wound around the hook shank to create a worm-like body.