Oh how quaint it was the other day! Now that zillions upon zillions of cicadas have made it up to the tops of the trees, the sound has progressed from awesome to annoying. Here's a minute of what we hear constantly. Sometimes there is an ebb, and sometimes that ebb is followed by a huge crescendo. It's difficult to hear even the most vocal birds, and it's difficult for them to hear one another.
It seems that it's the male cicadas that make the loudest sounds (they're mating sounds, of course), and the females are responsible for a ticking sound that declares their availability. How mates find one another in this din boggles the mind.
Here's the sound of one cicada from our current brood XIX (captured by a brave soul):