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theflycrate

Silhouette Dun BWO

Silhouette Dun BWO

$1.71 USD
$1.90 USD $1.71 USD
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The Silhouette Dun is one of the most popular dry fly patterns This fly imitates a variety of mayflies, including Blue-Winged Olives and Pale Morning Duns. Its simplistic design make it a great choice for picky trout.

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About Blue Winged Olives

Blue Wing Olives, or B.W.O.s, are small mayflies ranging in size from #18 to #22. They are among the most widespread and complex mayflies that fly fishermen will encounter. B.W.O.s are multi-generational, meaning that different generations will emerge throughout the year.

In general, hatches occur in the spring and fall, with the most intense hatches taking place on cloudy, cool, wet, or snowy days. B.W.O.s are typically found in slower-moving water, back eddies, and quiet pools, but they prefer shallow, sun-struck riffles.

Although small, trout key into B.W.O. hatches and often ignore larger meals due to the sheer number of these mayflies.

All phases of the hatch are important to anglers, and the nymphs release from the bottom of the river and swim to the surface to emerge. Fly fishermen should carry nymphs, emergers, cripples, duns, and spinner fly patterns.

When Do Blue Wing Olives Hatch?

A Blue wing olive hatch can happen year round. However, they mostly happen in the spring and then again in the fall starting in mid September. These hatches are largely dependent on water temperature. Cloudy, rainy, stormy, and snowy weather makes for the best hatches. Why? Mayfly wings take longer to dry in damp conditions and, therefore, BWOs drift for longer distances on the water's surface. During these times the hatches are the longest and most intense.

Many times, you will also see a blue wing olive hatch during the summer. This typically happens when there is a drastic change in the weather and temperature. It is not uncommon for rain storms to both drop the air and water temperature enough to trigger a blue wing olive hatch. Always carry b.w.o. patterns in your fly box and be ready to match a spontaneous b.w.o. hatch.

What Size Hook For A Blue Winged Olive?

A B.W.O.'s body is slender and small. Choose blue wing olive fly patterns in hook sizes 18-22. Blue Winged Olives in the spring months are the largest of the species best fished in a size #16 to #18. The smaller sizes #20 to #22 are typically seen in the late summer and fall months.

More About Blue-Winged Olive Mayflies

Common Questions

Do I need a membership to place an order?

No, we want to make your shopping experience straightforward and hassle-free. You do not need a membership to place an order from our online fly shop.

Placing an order without a membership is simple. You can browse our website, select the items you want, add them to your cart, and proceed to checkout. You’ll be prompted to provide your shipping and payment information to complete your order.

How much is shipping?

We offer a variety of shipping options to suit your needs. Here are the available shipping methods along with their estimated costs:

  • USPS First Class Package: $4.90+
  • USPS Priority Package: $9.90+
  • UPS Ground Delivery: $9.95+

Please allow 1 to 2 business days for processing and handling of your order. This is in addition to delivery estimates from shipping carriers.

What payment methods do you accept?

We accept major credit cards, including Visa, Mastercard, American Express, and Discover. We also offer the option to pay securely through PayPal and Amazon. In addition, we now accept checks through the mail. Once payment is collected and verified, we ship orders within 1-business day.

Where are you located?

We are located in the Lehigh Valley of Pennsylvania and ship all orders from our PA facility. Our staff are all based in the USA.

Why Choose Us

The Fly Crate, American-owned and based in Pennsylvania, offers fast service, a 100% satisfaction guarantee, and donates 2% of sales to support veterans. ⭐⭐⭐⭐⭐

  • 100% Satisfaction Guarantee

    We stand behind our products so if any flies unravel first-cast-in or you're unhappy with the performance, we offer exchanges and refunds on all purchases.

  • American Owned

    Based in the heart of the Lehigh Valley in Pennsylvania, The Fly Crate takes pride in offering fast shipping and reliable service to anglers across the country.

  • 2% Goes to Veterans

    It’s true, 2% of all sales is committed to Project Healing Waters Fly Fishing and their participants. Every year we contribute 1,000's of flies to events across the USA.