I've lived with cicadas , and or crickets for 20 yrs. I 'm close to 80 now , and besides cicadas , what's funny , is if I heavily exert myself , and my heart starts beating under stress , the cicadas pulse too. I still use foam ear plugs at the range , 'cause I just don't give a shoot any more. When up at camp , the echo that comes back from the woods and hills after firing a strong gun is priceless. One time in the 1950's I was hunting around a pack of W.Va. deer drivers. I was on the Pa. side of the W.Va. border , and they were on the south side of the W.Va. border(Mason -Dixon Line). Was buck/doe season on their side , and buck only across the border in Pa. where I was. I asked my Dad why there was so much gunfire on the W.Va. side of the line , and he said they were probably using then plentiful WW2 surplus 30.06 Garands , Legal for deer semi-autos in W.Va. , and firing "sound shots" to move the deer around. We moved further out the Mtn. further away from the border.