>>941671Ahh yeah I seen this! The guy has an interesting approach.
Also the NPS has been sending people around in all seasons to record the soundscapes of the National Parks for quite some time. I kept trying to find ways to get a jerb doing this but they've already got their people under contract to do all the fun (academics and Phd students mostly).
http://www.npr.org/2016/06/29/483241647/beyond-sightseeing-youll-love-the-sound-of-americas-best-parks