i love this part
"We had the sound of a hawk," Szabo said. "We played them through audio devices. After a while the birds started to laugh at us because they realized there wasn't a predator up there."
the whole thing makes me think of seinfeld...we have an agreement with the birds. they move out of the way of our cars, and we overlook the statue defamation.
or the far side comic when the birds are in the tree and everything has a target on it...but i can't find a pic online.