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Re: flocking

  I'm sure most people have seen gigantic
> flocks of starlings or blackbirds that, while flying, may all suddenly
> wheel and turn in unison.  What allows them to communicate this sort of
> action to one another?  And in the world of pure speculation, is it
> possible birds have inherited this trait from the theropods?  Or is it
> something that has evolved much later? I'm not sure what other birds
> participate in this sort of behavior...
> Andrea Kirk
> University of Maryland

        Just to confuse things further, schooling fishes are masters at
this turning and wheeling as one.  Do you suppose this sort of
behavior comes from that far back?