There is nothing more annoying than trying to sleep at night and hearing the sound of mosquitoes hovering over your head like a band playing music. Here’s why they do this. The sound you hear when mosquitoes buzz around your ears is caused by the rapid beating of their wings. The buzz is mainly a byproduct of the mosquito’s flight, with female mosquitoes beating their wings 500 times per second at a frequency of 450 to 500 hertz. This frequency corresponds to the musical note A, the standard tuning pitch for orchestras. The sound you hear is most likely from a female mosquito, as male mosquito…