What the 17 year cicada sounds like INDIVIDUALLY and in a GROUP

Every 17 years these cicadas crawl out of the ground in groups called broods and make the forrest sound like an alarm whispering in the distance. In fact the local news asked that people stop calling 911 and use a non emergency number because this has been every day for a week. The entire cycle lasted for about a month! During the video one comes right out of the ground in front of me.....