Angry Birds - Now In Real Life Too

While male sparrows can fight to the death, a new study shows that they often wave their wings wildly first in an attempt to avoid a dangerous brawl.  Swamp sparrows use wing waves as an aggressive signal to defend their territories and mates from intruding males.  "For birds, wing waves are like flipping the bird or saying 'put up your dukes. I'm ready to fight,' " said Duke biologist Rindy Anderson. read more

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