"Skyscrapers are lethal to migratory birds."
"Upwards of a billion die every year just in the united states."
"It shows research from the Smithsonian Migratory Bird Center."
"The most dangerous american cities for migratory birds are Chicago, Houston and Dallas, writes british The Guardian. Worst dödsfällorna is glass-covered and illuminated skyscrapers."
"– migratory birds landing on a sidewalk at night. In the morning, they fly up in what they think is a tree, but in fact, it is a tree reflected in a glass-roofed building. They crash into the glass and die, " says Susan Elbin, director of djurskyddsorganisationen New York City Audubon, to The Guardian."
"Birds are drawn to light. Since the migratory birds flying at night are attracted by the lighted cities. After skyskrapetäta Chicago, Houston and Dallas – which is located right in the flyttstråken – are the worst cities for migratory birds, New York, Los Angeles, Saint Louis and Dallas. They are also located along the flyttrutter, according to research from american Cornell Lab of Ornithology."
"Some bird species are more at risk than others. It applies, for instance, songbirds, which tend to chirp when seeing the stadsljus. When they do it is a big risk that they attract more relatives to the dangerous place."
"One of the ways to reduce the fågeldöden is to put out the buildings at night during the periods when migratory birds are migrating, that is to say, in spring and in autumn. Another trick to protect migratory birds can be to build skyscrapers with patterned glass, which does not reflect light. Such rules are already in San Francisco and the canadian Toronto."
"It is difficult to measure exactly how many migrating birds die when they fly into skyscrapers in the united states. The study from the Smithsonian Migratory Bird Center shows that between 100 million and one billion birds, particularly migratory birds, die when they fly into buildings, preferably skyscrapers. The study is based on data from many different groups around the country."