that is really cool with the birds. what kind of birds are they? i just read in audubon about how flocks of birds manage to fly so close together and change direction so quickly without hitting each other - except that no one fully understands it yet.
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that is really cool with the birds. what kind of birds are they? i just read in audubon about how flocks of birds manage to fly so close together and change direction so quickly without hitting each other - except that no one fully understands it yet.
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