جغد ها چطور اینقدر بی صدا پرواز می کنند؟ از بی بی سی

Experiment! How Does An Owl Fly So Silently? | Super Powered Owls | BBC Using sensitive sound equipment the team try to find out how an owl can fly so silently compared to other birds. Taken from Super Powered Owls. Subscribe to BBC Earth: http://bit.ly/BBCEarthSubBBC Earth YouTube Channel: http://www.youtube.com/BBCEarth BBC Earth Facebook http://www.facebook.com/bbcearth (ex-UK only) BBC Ea

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