The larger Black Vulture will force Turkey Vultures away from carrion if there isn't enough to go around (c) Richard Brown
Turkey Vultures were abundant virtually everywhere we went (c) Giselle Eagle
The only King Vulture we saw during our trip. Whereas the species above are migratory, this species is a resident of tropical lowland forest (c) Richard Brown
There is some debate as to how the King Vulture locates carrion. This individual was very high and was probably on the look out for other vultures showing signs of having detected a meal. But some studies have recorded King Vultures finding carrion in forested areas without the aid of other vultures, perhaps indicative of some olfactory capabilities.
It is uncertain where the name King Vulture originates but two theories predominate. Excluding the two condors, King Vultures are the largest New World vultures and will displace the smaller vultures from a carcass; they are thus King of the Castle. But the name perhaps originates in Mayan legend where the bird was a king who served as a mediator between humans and the gods.