Plutarch, a priest himself and should know about such things, goes on to say that the vulture

“…is a creature the least hurtful of any, pernicious neither to corn, fruit-tree, nor cattle; it preys only upon carrion, and never kills or hurts any living thing; and as for birds, it touches not them, though they are dead, as being of its own species, whereas eagles, owls, and hawks mangle and kill their own fellow-creatures....Besides, all other birds are, so to say, never out of our eyes; they let themselves be seen of us continually; but a vulture is a very rare sight, and you can seldom meet with a man that has seen their young; their rarity and infrequency has raised a strange opinion in some, that they come to us from some other world; as soothsayers ascribe a divine origination to all things not produced either of nature or of themselves.”

I’m sure Aelian has something nice to say, as well.