Zopilotes the Scavengers

Normally found in large flocks perched and flying overhead, these birds are known to scavenge for small and large sized animals. They will eat rotting animals and fight over it in large flocks. The bare head allows them to stick their head into a dead carcass without soiling feathers avoiding bacterial growth. Black vultures nest in early spring, laying their eggs in tree cavities, on rocky ledges, or in caves. Nesting locations are usually in remote areas and may be far from their feeding grounds.

Info Source: http://wildwnc.org/af/blackvulture.html