1:05 - 1:20 is what they sound like here

https://youtu.be/sh1mfzdWOuo?feature=shared

While a recording will let you hear what they sound like (a loud buzzing) no recording will properly convey the true decibel level of a large brood singing in the trees while you are on the ground below listening. It is something one has to personally experience to properly understand.

yeah, we get the occasional cicada down here in Australia.. but that sounds like its a force of nature sort of noise level.

The cicada recordings I heard were steady loud buzzing | clicking white noise with an underlying pulse.

I can imagine that getting annoying.

Volume wise, it seems decibels below daily flocks of thousands of Sulpher Crested Cockatoos rap battling flocks of Corellas which we get in this part (any parts) of Australia.

For interest: Individual Australian parrot calls https://www.youtube.com/watch?v=EF8Nr_as0CI

Now, multiply by a thousand and put them in trees outside your house.

@ work in the summer months when i go for my daily walk at work - i frequently block my ears from the sound. I live and work in Western Sydney.

In Tennessee, we've had cicadas so loud that dogs and cats were crying in pain.

Force of nature is correct terminology, here.

See my other comment here. We 100% get "force of nature loud" cicadas.