It is estimated that up to one billion birds die every year in North America after colliding with buildings. The combined threat of habitat loss, non-native predators, and collisions may be too much for species populations to withstand. BirdSafe Pittsburgh aims to bring attention to this issue by directly involving residents in research while sharing collected data with scientific and public audiences.  Many cities across North America has studied this issue including Atlanta, Baltimore, Chicago, Cleveland, Detroit, Minneapolis, New York, Ottawa, Pittsburgh, San Francisco, and Toronto.  All using citizen science to study and solve the issue of window collisions.  

At Powdermill Nature Reserve’s Avian Research Center, the American Bird Conservancy and Carnegie Museum of Natural History have been studying birds’ perception of patterned glass to ultimately reduce bird-window collisions.