Overview

The Blue Wing Olive Fly is one of the most trusted dry fly patterns in the world, and for good reason. Designed to imitate the adult stage of the Blue-Winged Olive mayfly—one of the most widespread and dependable hatches throughout the year—this fly consistently brings fish to the surface. With a slender olive body, upright blue-gray wings, and a precisely balanced hackle, it rides high on the water, mimicking the delicate dun with lifelike accuracy.

Whether fished during thick hatches or as a subtle searching pattern on cloudy days, the Blue Wing Olive excels in rivers, streams, and stillwaters alike. It’s especially effective in spring and fall, but can produce year-round in tailwaters and technical fisheries. Trout feed on BWOs with confidence, making this fly a must-have when the bite turns toward the surface. If you’re matching the hatch—or just hoping to—this pattern should always be close at hand.

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