Nice to see someone found Bird song book interesting. Here's a cool paper on bird song during lockdown. Derryberry, Elizabeth P., et al. Singing in a silent s

Nice to see someone found Bird song book interesting. Here's a cool paper on bird song during lockdown. Derryberry, Elizabeth P., et al. Singing in a silent spring: Birds respond to a half-century soundscape reversion during the COVID-19 shutdown (2020) (DOI: 10.1126/science.abd5777)