weecorbie's Identifications

Towns Bluff County Park or Bullard Creek WMA, near picnic area and restrooms not far from the river. There was loud landscaping equipment nearby and I had difficulty getting a recording but fortunately this one is clearly the whirring of Magicicada tredecim. I also photographed and iNatted one. There seems to be intermittent buzzing which I believe is Magicicada tredecassini but am not totally confident. It's audible at 13, 18–20, 24, and 28–29 seconds, loudest at 20 and 24.

I am not sure if I'm confident enough to make a second observation for what I suspect is tredecassini.