Quieter Spring
The natural soundscape of chirping birds across much of North America and Europe appears to have become quieter and less diverse over the past 25 years, in which researchers say bird numbers have plummeted.
Simon Butler of Britain’s University of East Anglia analyzed sound clips with acoustic modelling of more than a thousand bird species that were recorded in Europe and North America between 1996 and 2018. He and colleagues found there was a sharp decline in both the diversity and intensity of birdsongs, mirroring the loss of bird populations during the study period.
It has been documented that the calls and other sounds made by the winged creatures can have a positive effect on human well-being and connect us with the natural world.
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