![]() ![]() We want people to know this as we want their time and money to be well spent - protecting the birds we all love." Swaddle added "This research was conducted with a team of William & Mary undergraduate researchers, demonstrating the caliber of William & Mary students and the promise of the next generation of conservation researchers. We were able to show that people must apply decals and films to the external surface of their windows to benefit the birds. "There are lots of decals and window films that will likely make glass surfaces more visible to birds, decreasing collision risk. ![]() "Many people want to reduce bird-window collisions, as these unfortunate events kill hundreds of millions of birds each year," says Dr. Therefore, the results of this research demonstrate the imperative that installers apply these products to exterior surfaces of windows to maximize their protective benefits and reduce the risk of daytime window collision. Bird Stickers and Sticker Activity Book by Cupkin: Innovative Side by Side Sticker Books - Spiral Binding Allows The Birds Sticker Book to Lay Flat - Over 500 Stickers and 12 Scenes for Kids 4-8 4. However, neither product was effective when the films were applied to the internal surface of windows. The team found consistent evidence that when applied to the external surface of windows, the films resulted in reduced likelihood of collision. A fine mist net in front of the windows prevented actual bird collision during the tests. The team employed a design that allowed isolation of the effect of the window treatments on avoidance flight behaviors. Using these films, the research team tested the avoidance of window collisions by zebra finches through controlled aviary flight trials. These products were selected for the test because they engage with different wavelenths of light and colors visible to many songbirds.įunding for the test of the BirdShades window film was provided by BirdShades Innovation GmbH. The research team tested two different window film products: BirdShades and Haverkamp. Swaddle, of William & Mary's Institute for Integrative Conservation worked with students Blythe Brewster, Maddie Schuyler, and Anjie Su, to perform the first experimental study to compare the effectiveness of two distinct window films when applied to either the internal or external surface of double-glazed windows. However, the results of this new study show that only external application of these decals can be associated with greater reductions in both window collisions and avian mortality.ĭr. Many people sympathetic to the potential of bird strikes around their homes or offices tend to apply decals to the inside of their windowpanes, primarily because external application is often logistically difficult and economically prohibitive, especially if the windows are above the first floor of a building. These strikes are a significant concern for bird enthusiasts and conservationists, many of whom advocate for applying visibly noticeable films, patterns, and decals on surfaces of windows to alert birds of the glass. Bird window strikes occur when a bird flying near a building cannot perceive a glass windowpane and flies into it. ![]()
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