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One hundred million to one billion birds die in collisions with windows each year. This statistic is just for the United States alone. Bird-window collisions are a significant source of human-caused avian mortality, and only habitat loss is thought to kill more birds on an annual basis. On average, 1-10 birds die per building each year by colliding with a window. Collisions are not limited to birds of a certain age, sex, or species. Approximately 25% of the bird species in the United States and Canada have experienced fatal collisions with windows including both migrant and resident species.

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PROJECT PREVENT COLLISION | (217) 424 - 6392 | dhorn@millikin.edu