2023-04-20 06:00:00
Published on 20/04/2023 at 08:00
” data-original=”/mediatheque/4/1/7/000114714_600x400_c.jpg” width=”600″ height=”400″ alt=”Glass facades detectable by birds”/> The observation tower in Solina, Poland, is equipped with anti-bird collision glazing with a reflective coating. © Photos Tadeusz Pozniak
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To avoid fatal collisions on the transparent surfaces of buildings, builders are beginning to offer high-performance technical solutions, but at a certain cost to budgets.
Our buildings are increasingly equipped with large glass surfaces to better help filter light. An architectural bias that is to the detriment of birds, for whom this trend is harmful. In the United States, scientific studies estimate that between 365 and 988 million birds die each year following a collision with a building. In Germany, their number amounts to a hundred thousand per year, or regarding 5% of the existing species park in the country. France would count the same number of victims as its Germanic neighbor according to estimates by the League for the Protection of Birds (LPO).
The explanation behind this phenomenon is simple: the bird does not see what is behind it or what is reflected by a window. “Birds mostly only perceive contrasts between colors and materials. In addition, depth perception is restricted and most species have better side vision than forward vision, which[…]
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