"Bright lights from buildings, especially those in cities taller than two stories, can attract and disorient nocturnal migrants, interrupting migration and leaving birds more susceptible to deadly collisions with buildings."Īs many as 1 billion birds die from building collisions every year, especially during migration when large numbers of birds are on the move. "Our studies have consistently shown that birds are attracted to artificial light at night," said Andrew Farnsworth, the scientist who heads the Cornell Lab's BirdCast project which forecasts intensities of migratory bird movements each spring and fall. Turning off or reducing non-essential lighting at homes, businesses, and high-rise buildings will help protect hundreds of millions of birds migrating over brightly lit cities. Analyses by scientists at the Cornell Lab of Ornithology and Colorado State University pinpoint key periods with the heaviest movements of birds in April and May. If yes, program to set the servo connecting to P1 to drive to 180° or to drive to 0°.Newswise - Ithaca, NY-The biggest window of opportunity is opening up now to protect birds returning to the United States and Canada on their spring migrations. In forever block, judge if the current light level is below 20. Notice: If you met a tip indicating that some codebases would be deleted due to incompatibility, you may continue as the tips say or create a new project in the menu. Detect the light intensity with the light sensor on the micro:bit, if the light intensity is below the threshold, program to drive the servo to draw the curtains.Ĭlick "Advanced" in the MakeCode to see more choices.įor programming, we need to add a package: click "Extensions" at the bottom of the MakeCode drawer and search with "servo" in the dialogue box to download it.So we can design a device that automatically draws the curtains to reduce light interference. Because at night, the decorative light near the glass can disorient the migrating birds, causing them to collide with skyscrapers, office buildings or other glass decorated with lights. One of the preventive measures is to turn off unnecessary lights or draw curtains at night. Bird hitting buildings is one of the most serious threats to birds. Bird hitting buildings or bird hitting glass refers to the fact that birds cannot recognize the existence of glass due to the transparent and reflective properties of the glass, and thus collide with buildings, especially glass windows, causing the birds to be injured or killed.
Case 12: Birds Anti-Collision Device Introduction
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