https://www.facebook.com/MarkTamayoBayAreaWeather/videos/1620499481321947/

Those things are basically flying chimpanzees.   I have some in my neighborhood that are bug farmers.  They cut out  section of grass where they can flip it up and down.  They come daily, flip up the grass, eat the bugs underneath and then put the grass back down.  Overnight the bugs will crawl back into the area and they repeat the process.   Honestly, a lot of humans I know wouldn't be smart enough to do that.