Black Vulture

Black vultures congregate like witches near abandoned buildings and stalk turkey vultures to take their prey while hissing at them to frighten them away. Their true calling, nevertheless, is elsewhere. Farmers in Kentucky are well aware of the species' reputation for preying on animals and pets. They "enjoy to play with the newborns... they'll jump around and get the calf comfy... before they peck out their eyes... then the tongue, then every last shred of flesh," according to the report. Minutes later, it's done.

They have even been known to attack pregnant ewes as they give birth, surgically decapitating the mother and devouring both the lamb and her flesh. Similar to keas, there isn't much that farmers can do. Without authorization from the federal government, it is illegal to damage migratory birds. They do have some advantages, like any animal (they're fantastic at cleaning up roadkill), but it's difficult to perceive them as anything but nasty.

Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Accipitriformes
Family: Cathartidae
Genus: Coragyps
Species: C. atratus