> Now - I have also heard the associated "Hummadruz" too - which is more of an insect / bee drone. I hate mosquitoes, but mainly their sound. Sometimes when it

> Now - I have also heard the associated "Hummadruz" too - which is more of an insect / bee drone. I hate mosquitoes, but mainly their sound. Sometimes when it's pretty silent, I can hear mosquito like it was in a room (with pitch varied like real mosquitoes) but it's entirely in my head (like tinnitus, I have it sometimes when air pressure changes), I found out when I've tried to cover my ears and sound didn't stop. I've already already learned to distinguish between real ones, imaginary ones and TIR's on nearby road (which simetimes sound similar).