Cicadas In My Neighborhood (San Antonio, Tx)

Thousands of cicadas occur in endless cycles for roughly one minute, at least where i was in my backyard in san antonio, texas. At the beginning of the cycle, they truly sound like a jet with engines idling on a runway, growing louder as it maneuvers into a take-off position. After several more seconds, the soft whirring grows louder and louder for about ten seconds or so, and at the closing of the cycle crescendos into a a sustained cacophony like crickets on crack.