Can dementors actually be killed?

[Steve]

No: HPFGUIDX 182389

---  "jdl3811220" <jlenox2004 at ...> wrote:
>
> Jenni from Alabama:
> 
> I know that a Corporeal Patronus will repel a dementor... but I don't 
> remember ever reading about one actually killing a dementor. Can 
> dementors be killed or are they immortal?
> 
> Jenni
>

bboyminn:

Despite the Dementors somewhat vaguely human-ish form, I don't
think they are born (in the normal sense) or that they die. I
think it more likely that they wax and wane with the mood of the
times.

During better times the 100 or so Dementors are content to 
remain at Azkaban and feed off their Ministry supplied prey. 
But as Voldemort returns and times become darker, and the
Dementors are given more free rein, I think their numbers 
begin to multiply. Once the dark battles are ended and people
are more pleased and in less of a dark mood, their number start
to fade. 

Like most creatures their numbers rise and fall with the
availability of food. When the world is in a dark mood they
feed of that darkness multiplying themselves and exaggerating
the mood that supports them. Again, as the dark mood fades,
the food supply dries up, and the Dementor numbers fade.

Here in Minnesota the Deer and Wolf populations are so 
intertwined. When deer are plentiful, so are wolves. But when
deer are scarce, the wolf population drops in proportion to
that available food supply.

I don't see the Dementor as being truly human, or truly
living enough to be born or die. It is more like I said, they
wax and wane with the mood that supports them.

Slightly repetitive, but I think the point was made.

Steve/bboyminn