Bay Area birds change their tune amid COVID-19 shutdown – The Mercury News
This was a silent spring for Bay Area residents, as COVID-19 trapped us indoors to wait, worry and whine.
But outside, our birds re-discovered their most sexy serenades. The stage was all theirs.
A first-ever acoustic comparison of avian songs before and during the springtime shutdown reveals that birds respond quickly when humans hush.
They sang more softly — and these songs were faster, with a wider, lower and more romantic range of pitch, according to the study, published in Thursdays issu…