There were close to 200 of them this time, an incredible flock of ugly, naked-headed ghouls perched in three trees at the edge of a strip of jungle, where the vines and thick stuff gave way to tall grass. That meant just one thing: A jaguar must have pulled down one of the wild cattle there and was still feeding, or lying up not far away. The vultures were waiting their turn. The dogs would get a workout now — and so would we!