Bird-Smart-Glass-LogoEffective Window Solutions

It is estimated that up to a billion birds die each year in the United States when they hit glass windows, walls and other structures, making this threat one of the most costly to bird populations.

Below is a list of products evaluated by American Bird Conservancy that have been shown to reduce collisions on glass. Ratings assume that patterns are applied to the outside surface of glass, or that surface reflections do not obscure the pattern. Included are:

1. Products that have been tunnel tested by ABC, with a tunnel score of 70 or higher. These products are denoted with ABC's ‘Saves Birds' logo.

2. Other products are listed as “Also Recommended” and meet the following criteria:

Note: No window product, including ABC-tested products, can guarantee elimination of window collisions. Results will vary depending on local bird populations, landscape conditions, product used and building design.

We at American Bird Conservancy are proud to be the first organization to promote glass collision awareness on a nationwide scale. But we need your help: Please take action today to help solve the problem of birds hitting windows, using one of the options listed below.

Click to see products for homeowners and architects.


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HOMEOWNER PRODUCTS

ABC BirdTape – ABC BirdTape, effective product to stop birds hitting windowsABC Tested

Estimated Cost: $3 per 24″ x 32″ window

Easy to install, long-lasting and affordable, ABC BirdTape is highly effective when installed as recommended. This translucent tape allows light in, but partially obscures views. Lasts at least four years when installed on the exterior surface of a window. Click to order

Acopian BirdSavers – Acopian BirdSavers, effective product to stop birds hitting windowsABC Tested

Estimated Cost: $24 per 24″ x 32″ window

These “Zen Curtains” are easy to install, long lasting and highly effective. The bird-savers website gives directions to build your own, or order from them from Acopian Bird Savers. Click to order

Evonik Soundstop Birdguard – Evonik Soundstop Birds, effective stops birds from hitting windowsABC Tested

Estimated Cost: $10 per 24″ x 32″ window

Soundstop, generally used for noise barriers and handrails in outdoor settings, comes in two ‘Birdguard' versions that are good choices for bird-friendly applications. Click to order.

Feather Friendly® DIY – Feather Friendly, effective product to stop birds hitting windowsABC Tested

Estimated Cost: $10 per 24″ x 32″ window

These adhesive dots applied to the outside of your windows create an effective “frit” pattern. Do-it-yourself or have professionally installed. Click to order.

Solyx® Bird-Safety Film – Solyx_Bird Safety Film, effective product to stop birds hitting windowsABC Tested

Estimated Cost: $31 per 24″ x 32″ window

Do-it-yourself or have professionally installed. Click to order

CollidEscape, effective product to stop birds hitting windowsWhite Collidescape – Also Recommended

Estimated Cost: $36 per 24″ x 32″ window

This window film creates a solid appearance from the outside, but allows views from the inside and can reduce glare and cooling costs while protecting birds. Do it yourself or have professionally installed.

Click to order


 Want to live a bird-friendly life? Try these six simple steps!


ARCHITECTURAL PRODUCTS

Bird-friendly design should not increase project costs if it is considered from the outset of the design process, as outlined in Bird-friendly Building Design.

Legislation and guidelines in over a dozen jurisdictions, with more pending, mandate or encourage bird-friendly design, and the materials listed here satisfy their requirements. They can also assist designs intended to earn the USGBC LEED™ Pilot Credit 55: Bird Collision Deterrence.

Arnold Glas: Ornilux Mikado – Arnold Glas, Ornilux, effective product to stop birds hitting windowsABC Tested

Ornilux is the least-visible product currently on the market that provides some significant bird deterrence. Learn more.

Bendheim Channel Glass – Bendheim-Wall-Systems-3ABC Tested

The joins of this modular product create a pattern that deters collisions; it is up to 60 percent recycled; and features low-emissivity coatings. Learn more.

Evonik Soundstop BirdGuard – Evonik, effective product to stop birds hitting windowsABC Tested

This acrylic plexiglas has embedded polyamide threads for sliver retention and bird protection. Generally used for noise barriers, it is also suitable for use in handrails in outdoor settings. Learn more.

GlasPro Bird Safe Glass – GlasPro, effective product to stop birds hitting windowsABC Tested

This product is ideal for buildings and zoos wanting maximum transparency with a maximum deterrent for bird collisions. Inks are rated for a minimum 30-year lifespan in exterior application, with a lead time of less than 6 weeks. 100% made in the USA. Learn more.

Guardian Glass SunGuard SN68 – Guardian Glass, effective product to stop birds hitting windowsABC Tested

This patterned glass is both low-emissivity and solar controlling, enabling architects to meet multiple sustainability goals with a single product. Learn more.

Solyx® Bird-Safety Film – Solyx Bird Safety Film, effective product to stop birds hitting windowsABC Tested

Only the horizontal version of this product has been tested by ABC. Learn more.

Viracon – Fritted Glass – Viracon Birdfriendly Glass, effective product to stop birds hitting windowsABC Tested

These products have low-emissivity coatings and provide solar control and bird collision deterrence. Learn more.

Walker Glass' Aviprotek®Walker Glass Aviprotek, effective product to stop birds hitting windowsABC Tested

With acid-etched patterns on surface one Walker Glass' Aviprotek® line is an elegant and effective solution. Because the patterns are on surface one, they are more likely to obscure reflections than surface two patterns. Learn more.

Convenience Group Feather Friendly, effective product to stop birds hitting windowsConvenience Group's Feather Friendly Patterns – Also Recommended

These external vinyl patterns have proven effective on many buildings in the Toronto area. Users have reported significant reductions in collisions. Learn more.


Want to see your product listed here? Contact Dr. Chris Sheppard at csheppard@abcbirds.org


 ABOUT OUR RATINGS

ABC tests glass products and other deterrents by flying birds through a tunnel where they are presented with a clear glass pane in one “lane” and the tested product in another. The number of birds that fly to escape the tunnel towards the clear glass provides a score for avoidance of the deterrent. Light netting is placed in front of the glass to prevent injury to the birds and they are released after one flight.

Visual deterrents or patterns, such as those tested by ABC, can break up reflections and reduce related bird strikes such as those caused by reflected vegetation. However, ABC's tunnel testing is not specifically designed to rate products on their ability to reduce bird mortality caused by reflections. It is designed primarily to test how well visible patterns function to deter birds flying towards glass. Field applicability will also vary by installation: Relative effectiveness is governed by variable external factors, such as proximity of vegetation, orientation towards the sun, bird feeders, proximity to other buildings, etc. Realistically, these cannot be measured in statistically reliable tests that would provide broadly applicable results.


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