As shelter-in-place orders quieted the city of San Francisco, its sparrow population developed softer, sexier songs.
Origen: Pandemic Shutdown Altered Bay Area Birdsongs | The Scientist Magazine®
As shelter-in-place orders quieted the city of San Francisco, its sparrow population developed softer, sexier songs.
Origen: Pandemic Shutdown Altered Bay Area Birdsongs | The Scientist Magazine®
Ecotoxsan 
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