BWO or Baetis
Blue Wing Olive hatches are one of the most consistent and important mayfly hatches for trout, especially in spring and fall.
Best Flies for the Blue Wing Olive (BWO) Hatch
Best time: Overcast days, late morning to afternoon
Season: Spring and fall (can occur year-round)
Water: Slow to moderate currents, tailwaters, spring creeks
Trout behavior: Selective feeding on small mayflies and emergers
Match your fly to trout behavior—dry flies for surface feeding, emergers for selective fish, and nymphs when trout are feeding below.
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Blue Wing Olive - Mayfly Dry Fly
$0.98Original price $1.09Original price $1.09 - Original price $1.09Original price $1.09$0.98 - $0.98Current price $0.98| /The Blue Wing Olive is a must-have for matching one of the most consistent and important mayfly hatches across trout fisheries. When conditions tur...
View full details$0.98Original price $1.09Original price $1.09 - Original price $1.09Original price $1.09$0.98 - $0.98Current price $0.98| /Save 10% Save %Value must be grater than or equal to 1. -
Parachute Blue Wing Olive - Mayfly Dry Fly
$0.98Original price $1.09Original price $1.09 - Original price $1.09Original price $1.09$0.98 - $0.98Current price $0.98| /BWO is one of the most prolific and long lived hatches. This versatile color can also cover both the Pale Morning Dun and Pale Evening Dun. If you...
View full details$0.98Original price $1.09Original price $1.09 - Original price $1.09Original price $1.09$0.98 - $0.98Current price $0.98| /Save 10% Save %Value must be grater than or equal to 1. -
Flashback Pheasant Tail-Beadhead
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /A great improvement on this all-time classic pattern. Many nymphs take on a very shiny appearance right before emerging. Trout key in on this vuln...
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Pheasant Tail-Beadhead
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /One of the top five trout nymphs ever tied on a tippet. A near perfect imitation of the blue wing olive nymph, also works great for a general mayf...
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Sparkle Duns Dry Fly
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /A great emerger, dun, or cripple pattern. These flies ride low, have a trailing shuck, are easy to cast and see. Two excellent colors, for a plet...
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Barr's Emerger BWO
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Excellent pattern when fish are on the surface but not hitting the duns. Trailing shuck make this a great pattern to cast upstream, and allow to ...
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Flashback Soft Hackle Pheasant Tail - Tungsten
$1.19Original price $1.32Original price $1.32 - Original price $1.32Original price $1.32$1.19 - $1.19Current price $1.19| /Take a beadhead Pheasant Tail and give it a heavier bead, and you have a faster sink rate, and slightly different action to foll even the wariest ...
View full details$1.19Original price $1.32Original price $1.32 - Original price $1.32Original price $1.32$1.19 - $1.19Current price $1.19| /Save 10% Save %Value must be grater than or equal to 1. -
Pheasant Tail - Tungsten
$1.10Original price $1.22Original price $1.22 - Original price $1.22Original price $1.22$1.10 - $1.10Current price $1.10| /Take a beadhead Pheasant Tail and give it a heavier bead, and you have a faster sink rate, and slightly different action to foll even the wariest ...
View full details$1.10Original price $1.22Original price $1.22 - Original price $1.22Original price $1.22$1.10 - $1.10Current price $1.10| /Save 10% Save %Value must be grater than or equal to 1. -
Barbless Blue Wing Olive - Mayfly Dry Fly
$1.07Original price $1.19Original price $1.19 - Original price $1.19Original price $1.19$1.07 - $1.07Current price $1.07| /The most precise Blue Wing Olive or Beatis pattern out there. Rides high and true to fool the most wary of fish. When you see tiny 'sailboats' on...
View full details$1.07Original price $1.19Original price $1.19 - Original price $1.19Original price $1.19$1.07 - $1.07Current price $1.07| /Save 10% Save %Value must be grater than or equal to 1. -
Flashback Pheasant Tail
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Like all the Pheasant Tail patterns, this one has a spot in every trout fisher's fly box. One of the best all time emerging Callibaetis patterns, ...
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Pheasant Tail Emerger-Beadhead
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /An excellent pattern for imitating all sorts of emerging mayfly nymphs. Combines the attributes of the beadhead nymph with the attributes of an ...
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Barbless Beadhead Flashback Pheasant Tail
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /A great improvement on this all-time classic pattern. Many nymphs take on a very shiny appearance right before emerging. Trout key in on this vuln...
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Blue Wing Olive Wet Fly
$0.98Original price $1.09Original price $1.09 - Original price $1.09Original price $1.09$0.98 - $0.98Current price $0.98| /This prolific hatching mayfly makes itself available to fish and fly fisher year around in many locations. A real fish producer. Wet flies are a s...
View full details$0.98Original price $1.09Original price $1.09 - Original price $1.09Original price $1.09$0.98 - $0.98Current price $0.98| /Save 10% Save %Value must be grater than or equal to 1. -
Barbless Beadhead Pheasant Tail
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /One of the top five trout nymphs ever tied on a tippet. A near perfect imitation of the blue wing olive nymph, also works great for a general mayf...
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Barbless Parachute Blue Wing Olive
$1.07Original price $1.19Original price $1.19 - Original price $1.19Original price $1.19$1.07 - $1.07Current price $1.07| /Overview: One of the most prolific and long lived hatches. This versatile color can also cover both the Pale Morning Dun and Pale Evening Dun. If ...
View full details$1.07Original price $1.19Original price $1.19 - Original price $1.19Original price $1.19$1.07 - $1.07Current price $1.07| /Save 10% Save %Value must be grater than or equal to 1. -
Flashback Pheasant Tail - Tungsten
$1.10Original price $1.22Original price $1.22 - Original price $1.22Original price $1.22$1.10 - $1.10Current price $1.10| /A great improvement on this all-time classic pattern. Many nymphs take on a very shiny appearance right before emerging. Trout key in on this vul...
View full details$1.10Original price $1.22Original price $1.22 - Original price $1.22Original price $1.22$1.10 - $1.10Current price $1.10| /Save 10% Save %Value must be grater than or equal to 1. -
Blue Wing Olive Quill Body - Mayfly Dry Fly
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /A quill body version of the infamous BWO. Rides high and true to fool the most wary of fish. Slender, segmented quill body
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Soft Hackle Pheasant Tail
$0.98Original price $1.09Original price $1.09 - Original price $1.09Original price $1.09$0.98 - $0.98Current price $0.98| /Is there a time not to use this pattern? Excellent imitation of all major mayflies, especially during their emerging stage. Great for a searchin...
View full details$0.98Original price $1.09Original price $1.09 - Original price $1.09Original price $1.09$0.98 - $0.98Current price $0.98| /Save 10% Save %Value must be grater than or equal to 1. -
CDC Pheasant Tail-Beadhead
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /A CDC is typically used on dry flies as it naturally floats fairly well. However, on nymphs it can create an incredible amount of movement that ca...
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Flashback Pheasant Tail Curved Hook-Beadhead
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /A great improvement on this all-time classic pattern. Many nymphs take on a very shiny appearance right before emerging. Trout key in on this vuln...
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Phlaming Pheasant Tail - Beadhead
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Your all-time favorite pattern with a bead that imitates the gas bubble nymphs ride to the top. This one will quickly be one of your must have's....
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Barbless Pheasant Tail
$0.98Original price $1.09Original price $1.09 - Original price $1.09Original price $1.09$0.98 - $0.98Current price $0.98| /A classic nymph, peacock thorax, slender pheasant tail body. The wire rib presents a nice segmented look, in addition to adding flash and durabili...
View full details$0.98Original price $1.09Original price $1.09 - Original price $1.09Original price $1.09$0.98 - $0.98Current price $0.98| /Save 10% Save %Value must be grater than or equal to 1. -
Parachute Blue Wing Olive Blue Dun Post - Mayfly Dry Fly
$0.98Original price $1.09Original price $1.09 - Original price $1.09Original price $1.09$0.98 - $0.98Current price $0.98| /One of the most prolific and long lived hatches. Presented here with a blue dun post, to closer match the wing of the natural. If you have never f...
View full details$0.98Original price $1.09Original price $1.09 - Original price $1.09Original price $1.09$0.98 - $0.98Current price $0.98| /Save 10% Save %Value must be grater than or equal to 1. -
Pheasant Tail UV-Beadhead
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Lets face it fish like shiny stuff, it is often what attracts them in the first place. Pheasant Tail UV contains UV dubbing in the thorax that he...
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Barbless Flashback Pheasant Tail
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Like all the Pheasant Tail patterns, this one has a spot in every trout fisher's fly box. One of the best all time emerging Callibaetis patterns, ...
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Golden Pheasant Tail
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /A great pheasant tail pattern that is especially popular in the PA area. Much like a traditional pheasant tail, but with subtle difference that ca...
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Soft Hackle Pheasant Tail Glass Bead
$1.07Original price $1.19Original price $1.19 - Original price $1.19Original price $1.19$1.07 - $1.07Current price $1.07| /Swinging soft hackles for trout has gained some popularity of late. This pattern is particular designed with that in mind. While it can be fishe...
View full details$1.07Original price $1.19Original price $1.19 - Original price $1.19Original price $1.19$1.07 - $1.07Current price $1.07| /Save 10% Save %Value must be grater than or equal to 1. -
Pheasant Tail Cadillac-Beadhead
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /An import from New Zealand. A robust pheasant tail, with a full bodied silhouette. A great addition to your beadhead arsenal.
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Cove's Pheasant Tail
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Everyone, in mean everyone, has a pheasant tail nymph in a fly box. The Cove's Pheasant Tail is yet another pattern spawned from the ingenious p...
View full details$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89| /Save 10% Save %Value must be grater than or equal to 1. -
Film Critic - Umpqua
$3.32Original price $3.69Original price $3.69 - Original price $3.69Original price $3.69$3.32 - $3.32Current price $3.32| /Bob Quigley, the king of the "film” designed the Film Critic to match mayflies at their most vulnerable stage of the hatch, while emerging from nym...
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Missing Link Mercer's - Umpqua
$3.23Original price $3.59Original price $3.59 - Original price $3.59Original price $3.59$3.23 - $3.23Current price $3.23| /The Missing Link is that fly that works even when when the hatch might be not quite as expected. You may have thought PMDs were going to pop today,...
View full details$3.23Original price $3.59Original price $3.59 - Original price $3.59Original price $3.59$3.23 - $3.23Current price $3.23| /Save 10% Save %Value must be grater than or equal to 1. -
Christiaens' GT Adult - Montana Fly Co - Mayfly Dry Fly
$2.93Original price $3.25Original price $3.25 - Original price $3.25Original price $3.25$2.93 - $2.93Current price $2.93| /It's a great all-around mayfly dry The klinkhammer-style curved hook leaves much of the fly's body under the surface, represents a struggling emer...
View full details$2.93Original price $3.25Original price $3.25 - Original price $3.25Original price $3.25$2.93 - $2.93Current price $2.93| /Save 10% Save %Value must be grater than or equal to 1.
Blue Wing Olive (BWO) hatches often bring out selective trout, especially on pressured rivers and tailwaters. Matching size, profile, and presentation is usually the difference between refusals and eats. Most BWO fishing happens in sizes 16–20, with emergers outfishing dries when trout are feeding subtly in the film. Target softer seams, eddies, and slower edges during active hatches.
BWO hatches peak in spring and fall and are strongest during overcast or rainy weather. These mayflies can hatch multiple times a year and often produce longer, more consistent windows than other mayflies.
Trout key in on specific stages of the insect, so adjust your flies as their behavior shifts. Use dries when fish are rising confidently, switch to RS2s or emergers during subtle sips, and downsize if fish are refusing your presentation.