It's amazing how #birds can sing in a frequency spectrum "hole" where regular tree leave shimmer is not present. Here you can see wind blowing in forest trees + some road noise (cars), a big empty black band where a robin is boradcasting it's music, and then crickets above it. #Nature is incredible!
Screenshot is from #audacity REcording made with Rode VideoMicro and Zoom H1. No audio because reasons.
@unfa this is really intriguing. So you’re saying they specifically target frequencies where there will be less interference? For more effective communication?