Carrion

Once native to the Worlds Edge Mountains in the east of Nehekhara and also the deserts to the west, Carrion are massive scavenging birds, akin to vultures. During the first great Chaos Incursion, these beasts were saturated with Dark Magic and pulled into an Undead existence, caught half-way between life and death. The Carrion's victims enlarge the bird's power and their spirits ride them into battle, feeding upon death. In Nehekharan myth, they carried the souls of the dead to the afterlife. The Carrion's body is decayed and bloated with death, its wings tattered leather.

Tome Text
"The Carrions were once a species of great carrion bird. Their massive flocks darkened the skies above Nehekharan battlefields, and they were thought to carry the souls of the dead warriors into the sky where they would fight eternal battles against Daemons of darkness."