They are a tribe of cannibals located around Arroyo, probably in another part of Oregon that is impossible to reach in-game. Based off their dialogues, they do not seem to be very structured or intelligent, but they have incredible speed and agility. They have no known headquarters and travel in small bands of six, armed with knives and spears seeking humans for their meat.
They are quite strong for low-middle level characters, especially in melee combat. Their spears are used in ranged battle meaning they can deal damage up close and at range. They have a decent amount of AP allowing them to reach any opponent quite easily, and are always in groups of six, surrounding the target at incredible speed if they are not killed in the first two rounds. That said, their low HP and armor mean they have a low damage resistance.