The sound of cicadas on the east coast. Click to listen. (Above is a photo I took of one of the gang.)
Note: You can hear the sound of a landing plane in the middle of this short recording but mostly just the cicadas singing (or whatever they do).
Note (added June 3, 2013): Article on the cicadas "17-year cicadas create a buzz in some Va. neighborhoods" (Washington Post). Click to listen to them in another of my recordings from Manassas, Virginia.
Note (added June 9, 2013). Here are some haiku poems written by Matsu Basho about cicadas.
Nothing in the cry
of cicadas suggests they
are about to die
Calm and serene
The sound of a cicada
Penetrates the rock
A single cicada's cry
Sinking into stone