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How Do Owls Fly So Quietly?

Author: 
Jon Dough

Barn OwlHave you ever heard an owl fly over your head at night?

Probably not, because when owls are in flight their wings make very little noise.

These scientists wanted to know exactly how much sound is made by the owls, so they setup an experiment using highly sensitive microphones.

See the experiment and the unexpected final results in the BBC Earth video below.