The Sound of Cicadas -- Amazing Noise of Dense Cicadas

http://www.arlingtoncards.com/outdoors

Almost deafening sound of cicadas in Riverwoods, Illinois north of Chicago ...

Listen to thousands or millions of 17-Year Cicadas high up in the dense forest canopy of Riverwoods, Illinois in June 2007.

https://www.arlingtoncardinal.com

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