San Francisco songbirds changing their tune in pandemic

Thought this was interesting: In May, scientists studied the soundscapes and songs of the white-crowned sparrow, comparing it to data from May 2016. They discovered that these songbirds have changed their "tune."

SFGate:

Throughout the shutdown San Franciscans reported an unusual amount of birdsong ringing through the city streets, and a scientific study has now shown that birds have indeed changed their singing habits.