Look for Blue-Winged-Olives to Hatch Sooon Posted on January 16, 2015Author Michael TeaguePosted in Eastern Oregon, Oregon Fishing Report Central and Eastern Oregon – Trout fishing has been fair to good on the lower Deschutes this week. Look for Blue-Winged-Olives to hatch anytime rain starts to fall. Fly fishers… Read To access this post, you must purchase One Year Membership - Oregon.