Bird Noises

Free Download Bird Noises

Bird Noises. Bird sounds in the spring garden. Birds chirping in nature. Beautiful sounds of spring for relaxing. Best online SFX library for your projects. Download for free "Bird Noises" MP3 file has bitrate 192 Kbps, size 1,70 megabytes and length 01:18 min:

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During the quarantine, the birds in the cities began to sing quieter

Noise levels have been noticeably reduced in urban areas in the San Francisco Bay Area (USA) during quarantine. Male white-headed zonotrichia (lat. - Zonotrichia leucophrys; song sparrows of the Passerellida family) reacted to this: they began to sing quieter and at lower frequencies. At the same time, it seemed to people that they heard birds much more clearly, the authors of the post-quarantine study note.

First, the scientists looked at how the pandemic and its associated restrictions affected the noise characteristics of urban and rural areas. They compared noise data collected in April-June 2015 and 2016 with data collected in spring 2020. It turned out that during the quarantine, the noise level in cities decreased by an average of 7 dB and approached the indicators typical for rural areas. However, outside the city, the noise background has not changed much.

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