Finally, Nightwing spots the source of the new scent - a human, who has just stopped to rest against a nearby tree. "Brace yourselves, you two, I'm gonna be moving around a bit," he warns his two passengers. He then leaps up and scales the nearest tree to him and begins to make his way through the canopy as quietly as he can - after all, if the human notices him, he might run off. Just a few seconds later, he is sitting on a study branch just half a metre above the man. Carefully, quietly, he extends his neck downwards and smells his hair. It's definitely the same scent as earlier, but he can't quite place it. "What are you?" He asks aloud, having failed to notice the skeletal wings.