(In which way? I'm assuming you mean one of the Chalions. Curse, with an encapsulated soul, Paladin, with conduits to properly distribute soul or tethered bits of demon souls? Any could relate, in different ways...)

It would hinge on how directly and thoroughly Voldemort controls the Dementors. And if they can actually regurgitate consumed souls on command. If you want disconcerting images, Voldemort as baby bird is right up there.