Ed Engle on Early-Season Blue-Winged Olives

Ed Engle says the despite an el nino-induced spring torrent along Colorado’s Front Range, BWOs are on the verge. Look for drizzly days without wind to make it all happen. “Also, if you don’t see any hatching adults on the surface or if very windy conditions make surface activity improbable, it doesn’t mean you can’t catch trout with blue-winged olive nymph imitations. The nymphs are often active even when no surface feeding activity is taking place. In fact, the trout feed heavily on nymphs for as many as two to three hours before any surface activity occurs.” In the Boulder Daily Camera.