How hummingbirds make such awesome sounds

If you want to impress your friends over your weekend drinks or brunch, then listen up. A Yale University zoologist has figured out what exactly makes a hummingbird hum. The hummingbird is one of the smallest of all birds, with the smallest, the Bee Hummingbird, at just 5 cm. Though tiny, these birds can produce [...]

Source: http://www.geek.com/articles/geek-cetera/how-hummingbirds-produce-fluttering-sound-during-elaborate-mating-rituals-20110910/

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