The violent Lappet-Faced Vulture

The Lappet-Faced Vulture or Nubian Vulture is a mostly African Old World vulture, but they are separated into two subspecies, the first one lives in the Sinai and in the Negev desert, and the other one in north-west Saudi Arabia. The lappet-faced vulture is a scavenging bird, eating animal carcasses and their predator is their own specie, because one vulture watches to another, waiting their die. Also, the Lappet-Faced Vulture looks like a eagle (they are from the same bird order), and it is a huge bird, classified  as the longest and largest winged vulture (wingspan, the distance between the wing tips,  of 2.5–2.9 m), and usually they're black, brown and white. Finally, a interesting fact about the Lappet-Faced Vulture are, different to others birds, they're generally solitary birds. They do not nest in cohesive colonies as do many smaller vultures and they're really violent so, stay away for safety. 

Lappet-Faced Vulture

Taken from: http://en.wikipedia.org/wiki/Lappet-faced_vulture