![]() That means anything you put on your windows should be spaced apart 2” or less. Research shows that they will try to maneuver into spaces that are more than just 2” wide. If you hear a lot of thumps at one window, treat that one first with one of the products listed below - or come up with your own. Typically, just a few windows are causing the problem. ![]() It is expensive and likely unnecessary to treat all of the windows in your home. Step 1: Take note of which windows are worst. Reduce transparency and pass-through effects (solution: add window treatments to the inside OR outside of glass, partially close shades and turn off lights when not in use at night.) The best tactics for reducing window collisions are to:īreak up reflectiveness of windows (solution: add window treatments to the outside of the glass.) Or listen to this great podcast for more information on why this problem exists:įortunately, window collisions are preventable, and you can be part of the solution! That’s virtually all of the buildings in southern Wisconsin.Ĭheck out this article in the Spring/Summer 2023 Madison Audubon newsletter article about window collisions. In fact, around 43% of window collisions happen at homes, and about 56% happen in low-rise buildings (4-11 stories). The majority of bird-window collisions happen at apartment buildings, office buildings, and residential houses. Unfortunately the problem doesn’t occur only at skyscrapers in big cities. Between 600 and 900 million birds, and up to a billion birds, are killed each year following collisions with glass. It is the second-leading cause of human-caused bird deaths annually behind outdoor cats (2.4 billion birds/year). ![]() For example, Loss et al 2014 thoroughly examined hundreds of datasets that collectively demonstrate that huge numbers of birds die each year from hitting windows. The severity of the bird collisions problems has been documented in the peer-reviewed scientific literature. This has been a known problem for a long, long time. Based on data collected from our Bird Collision Corps program, we estimate that tens of thousands of birds die in Madison each year after hitting windows. ![]() And with more buildings using more glass, more birds are dying as a result. Up to one billion birds die from hitting windows each year in the United States alone. ![]()
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