Due to a combination of factors involving their limited perception and the reflective nature of glass, birds often mistake windows for clear passageways, leading them to collide with the transparent barrier. This phenomenon, known as “window collisions,” poses a significant threat to avian populations worldwide.
Importantly, window collisions not only result in direct bird fatalities but also contribute to injuries and population declines, particularly among migratory species. The reflective surfaces of windows can create the illusion of a suitable habitat or a safe passage, attracting birds to approach and attempt to fly through. Moreover, during certain times of the year, such as during migration or breeding season, birds may exhibit increased activity and reduced vigilance, making them more susceptible to window collisions.