Ciekawostka: Over 1000 birds a year die from smashing into windows

Evidence: 59 • authority: 92

Economic benefits of preventing bird collisions in South Korea: findings from a choice experiment survey.. Bird deaths due to collisions with artificial structures, such as glass windows of buildings and transparent noise barriers, are continuing to occur in South Korea. The government is trying to prevent bird collisions by increasing the attachment of specially designed tapes to help birds avoid windows. This article estimates the economic benefits arising from the prevention of collisions by applying a choice experiment (CE). For this purpose, a CE survey of 1000 South Korean interviewees was conducted. The four attributes to be attached with the tapes for the CE application were a trans…

Evidence: 41 • authority: 92

Ultraviolet-reflective film applied to windows reduces the likelihood of collisions for two species of songbird.. Perhaps a billion birds die annually from colliding with residential and commercial windows. Therefore, there is a societal need to develop technologies that reduce window collisions by birds. Many current window films that are applied to the external surface of windows have human-visible patterns that are not esthetically preferable. BirdShades have developed a short wavelength (ultraviolet) reflective film that appears as a slight tint to the human eye but should be highly visible to many bird species that see in this spectral range. We performed flight tunnel tests of whether…

Evidence: — • authority: 35