The Blue Winged Olive (BWO) Dry Fly is a popular and effective pattern used in fly fishing, especially for trout. It imitates the small mayflies commonly found in rivers and streams, particularly in cooler seasons like spring and fall. The fly's slender body, olive-green or dark brown coloration, and upright wings mimic the natural mayfly perfectly. It works best when cast on the water's surface during hatches. Fish it delicately on light tippet to fool selective trout.
