Originally Posted by Emproph
Interesting. Perhaps the bird was meant to signify both.
The ones "taken" could be understood as eagles who saw the overview and gathered together on purpose.
But the ones "left" would be vultures, or the victims of vultures. Those without "sight," stuck with each other by the nature of their common confusion. The kind of people that would invariably turn on each other, aka 'eat each other' like "vultures."
Interesting idea. It is hard to really figure out what is meant by this verse but given the context of people taken and people left it makes sense.