[Taxacom] Poor flying hoatzins dispersed (on flotsam) fromAfrica to S. America?

[Adam Cotton]

The whole idea of these virtually flightless birds travelling across the 
(probably at the putative time somewhat narrower) Atlantic, and then having 
enough genetic variation among the individuals that sat calmly on this 
flotsam to produce a viable ppulation when they fortuitously arrived on the 
other side sounds to say the least ludicrous. Apart from anything, what did 
they eat on the journey?

Although I know very little about birds it seems too far fetched to me, and 
I would have to agree that the hoatzins surely must have occupied the 
territory before it split in two.

Adam Cotton.
(not related to the James Cotton on here, although I have a non-biologist 
brother of that name)