Cost for Bird Collision Deterrents
Q: What does it cost to make a single building bird safe? A: It depends!
The issue of bird collisions with windows has become a leading conservation biology concern worldwide. Laws and polices, designed to mitigate this global threat, are steadily being introduced on a region-by-region basis. This response has created a swell in demand for effective bird collision deterrent products. The following options should be considered when investing in these immerging technologies:
What are the factors that influence cost?
There is no simple answer to this question, because the cost varies depending on numerous factors including but not limited to:
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To arrive at costing information for a single building, it is recommended to seek a quote from a local supplier, such as a window film installation company. Some manufacturers of bird collision deterrent glass and window film products have networks of regional suppliers. They may ask you for information about the building’s structure, to provide photos and/or arrange a site visit.
Is there a difference in cost between retrofits and new builds?
In general, the cost of retrofitting a building for bird safety is higher than the cost of making a new building bird safe during its design and construction.
Below are examples of typical cost breakdowns for individual buildings, with items listed in order of decreasing cost:
| Retrofit of existing building | New building construction |
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What are the material costs for new builds and window replacements?
Material costs vary by country. In general, fritted glass, etched glass or other custom bird friendly glass is more expensive (per square foot) than exterior application film. Some types of glass provide secondary benefits like improved energy efficiency or privacy. Labour and equipment costs may be partly recoverable by applying visual markers to glass before units are installed on the building. To access current and applicable information unit costs for specific solutions, it is recommended to contact individual manufacturers or suppliers.
Example cost breakdown for bird safe glazing for new building construction
| Building type | % of glass requiring bird safe glazing (per CSA A460) | $ increase in window contract for bird safe glazing |
| Low-rise higher education | 100% | 5%-10% increase |
| 40 Story multi-unit residential | 10% | 1% increase |
What are some performance requirements for retrofit products?
To assure threat you are getting the most out of your investment, it is important to require the following product performance requirements:
| Quality Assurance | Use qualified personnel skilled in the installation of the chosen visual marker(s), having a minimum of 2 years proven experience of installation of similar material. |
| Product Warranty | Ensure that the manufacturer’s exterior surface application product warranty against deterioration is a minimum of 8 years. The marker material must facilitate removal without damaging the glazed and/or polished materials. |
| Sample Installation | Apply sample installations to verify the strength of visual marker contrast and their aesthetic effects. |
Case Study Examples
- The Kendeda Fund Building (Atlanta, Georgia), a low-rise building 18,600 sq. ft in area, was treated during construction in 2019 with Viracon silkscreen at an overall cost of $32,000 USD including material and installation, with treatment covering about 3,000 sq. ft of glass. Total cost of the project was $25,000,000 USD. The treatment of the glass was covered by a Disney Foundation Grant. More info
- The Columbia Building (Portland, Oregon) is a low-rise building 11,640 sq. ft in area. 3,424 sq. ft of glass was treated with a film product called Solyx for a cost of $28,000 USD. More info
- The Forest Hall building at Oregon Zoo is a low-rise building about 33,000 square feet in area. The building’s windows were replaced with Ornilux Glass, a UV-based custom glass (that I don’t recommend and is at the higher end of the price spectrum for bird friendly treatments). Overall cost was $84,687 USD. They treated 4820 sq. ft. of glass. More Info
- At Western University (London, Ontario, Canada) a large high-rise building (7 stories, 120, 000 sq. ft) was retrofitted up to the fourth story with 3M film. Around 10,500 sq. ft of glass was treated. The cost was $90,000 CAD.
- The largest-ever bird friendly building retrofit in North America took place over the last 2 years at the Toronto-Dominion (TD) Centre, a six-building office complex in Toronto’s Financial District, with over 105,000 sq ft. of glass treated! The cost of that project was over $1 million CAD.
Examples of Retrofit and New Build Products
Window Film:
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- CollidEscape – http://www.collidescape.org/white
- Decorative Films – https://www.decorativefilm.com/specialty-bird-safety
- Feather Friendly – https://www.featherfriendly.com/
- Solyx Films – https://www.solyxfilms.com/catalog/specialty-films/specialty-bird-safety/
Window Fabricators:
- Bendheim (textured glass) – https://bendheim.com/faq/what-is-bird-safe-glass/
- Glaspro – https://glas-pro.com/products/bird-safe-glass/fritted_glass_for_railings/
- Goldray Glass (fritted glass) – https://www.goldrayglass.com/products/bird-friendly-glass/
- Guardian Glass – https://www.guardianglass.com/us/en/products/glass-type/bird-friendly
- Prelco (etched glass) – https://www.prelco.ca/en/architectural/products/insulating-glass/bird-safe-glass-prel-airsecur/
- Skyline Design – https://skydesign.com/product/skysafe-bird-friendly-glass/
- Verrage (fritted glass) – http://www.verrage.com/birdfriendly.html
- Walker Glass (etched glass) – https://www.walkerglass.com/products-options/aviprotek-pattern-211/
There are a wide variety of cost-effective and attractive options that can be an integral part of bird-safe building design or retrofits. To learn more about effective bird-safe design and solutions, please visit birdsafe.ca.
TIP: Canadian Federal laws including the Migratory Birds Regulations (2022) and Species at Risk Act as well as provincial laws including the Environmental Protection Act prohibit building owners from killing birds by causing collisions with glass, whether intentional or not. In cases where buildings are killing birds and may be the subject of complaints to law enforcement authorities, it is incumbent on the building owner to demonstrate due diligence to prevent further bird deaths or else they could face litigation. We recommend following the evidence-based CSA A469 standard to inform actions that would qualify as due diligence under such circumstances.
BirdSafe® Consulting
Under the umbrella of BirdSafe®, FLAP Canada has helped countless commercial, institutional, and governmental audiences make informed decisions to reduce risk to birds on their properties. Through our BirdSafe® consulting services, we offer site-specific building assessments to objectively identify and rate building façades and features posing the greatest risk for bird-window collisions. In this way, we provide tailored recommendations that help our clients prioritize areas for mitigation action, meaning you can save the most birds with your investment. A nominal fee is charged based on the number of façades being assessed.
For almost 30 years, FLAP Canada has been a global leader in the issue of birds and buildings. Trust the experts to help you reach a solution. To learn more about how we can help you, or to contact us for a quote, please visit birdsafe.ca.
Migration Alerts for Property Owners and Managers
During spring and fall, billions of migrating songbirds pass through our cities on the way to their northern breeding areas or southern wintering areas. It is during these difficult journeys that birds are most at risk of colliding with our built structures. FLAP Canada offers migration alerts for property owners and managers to alert them to times of peak migration activity. These notices allow building managers to take targeted actions when they are needed most, such as reducing lighting at night, retrofitting windows, and monitoring their buildings for dead or injured birds. Sign up for migration alerts and learn more at birdsafe.ca.
