What I was hearing was a very strange sound that I've never heard before, like a cicada on steroids.
Here in southern North Carolina, we call them "locusts" (even though the biology teacher at school tries to explain to us that they're not really locusts -- just some distant cousin). Anyway, that's what I've always called them, so they're locusts to me.We haven't seen too many around this year, but I do love to hear a group of them "singing" at dusk. Throw in some frogs croaking and a Bob White or two...Ah, the sounds of a country summer night...We usually find the shells they leave behind -- and they'll leave them anywhere! I always look for the most perfect left-behind shell and try to imagine how that big, fat locust got out of that shell and left it in tact. I like bugs, but now snakes, that's a different story.