Flocking

["M. J. Murphy" <mjm@pathcom.com>]

I have just finished Chatterjee's "The Rise of Birds", and would happily
give it my unsolicited endosement.  On a topic not discussed in the
book, what are the origons of `flocking behaviour'.  Chatterjee endorses
a trees-down theory of the origon of flight.  Does this perhaps entail
that `herding' animals climbed into the trees together and kept this bit
of social behaviour as flight developed?

Cheers,

M.J. Murphy

`The shapes of things are dumb.'
L. Wittgenstein