The new corona is changing the 'bird song'
The epidemic of the new coronavirus infection (COVID-19) has brought about major changes in human lifestyles. A study conducted in California found that the effects of COVID-19 extended to birds, improving the 'song quality' of birds.
Singing in a silent spring: Birds respond to a half-century soundscape reversion during the COVID-19 shutdown | Science
Study reveals coronavirus pandemic's surprising effect on how birds sing
https://www.inverse.com/science/coronavirus-changes-bird-song
A study conducted by joint research teams such as the University of Tennessee in California and San Luis Obispo, California Polytechnic State University, examines changes in the song of Miyamashitodo , a type of spider distributed in the northern part of the Americas. The research team recorded the songs of the white-crowned sparrow from April to May 2020 and compared them with the songs recorded from April to June 2015.
As a result of comparison, it was found that the white-crowned sparrow in 2020 sang with a lower amplitude and frequency than in 2015, and the quality of its voice was improved. This change was especially noticeable in the white-crowned sparrow, which lives in urban areas.
By Wolfgang Wander
According to the research team, it was the 'noise' produced by automobiles that directly influenced the song of birds. Due to the COVID-19 epidemic, it was required to refrain from going out unnecessarily, which reduced the traffic volume, and as a result, the noise generated by automobiles and the like was drastically reduced. In an environment where there is noise from automobiles, birds had to sing at higher frequencies in order to reach a distance, but the elimination of noise eliminated the need to sing at higher frequencies, improving singing performance. That is.
There have been many reports of improved animal life due to the effects of COVID-19. It has been confirmed that the range of wildlife activity has expanded when Yosemite National Park in the United States, which is famous as a tourist destination, was closed due to COVID-19.
Wildlife activity is expanding in national parks closed due to the effects of the new coronavirus --GIGAZINE
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