Quote Originally Posted by WestonWisdom View Post
As for the lack of zombie clean-up, we have to presume that the zombies are at least semi-concerned with self preservation, an open area like that would be too risky to clean up, there could easily be people watching from the aircraft control tower etc.
The zombies have only ever cleaned up the bodies not the blood. And really how long has it been since the last rain storm? It was pretty early on in the story I think. So the attack on the helicopter could have happened as far as a couple of months back.