Also Jerome Sueur and Stuart Gage's book, [Ecoacoustics: The ecological role of sounds][1] is a great start. Many university libraries have it as a PDF. **Reference** Farina, A., & Gage, S. H. (Eds.). (2017). Ecoacoustics: The ecological role of sounds. John Wiley & Sons. [1]: https://www.wiley.com/en-au/Ecoacoustics:+The+Ecological+Role+of+Sounds-p-9781119230694