Forbidden Forest question

[Carol]

Carol earlier:
> > That led me to wonder what creatures are still left in the
Forbidden Forest 
> SNIP
> > Werewolves, I think, were just a legend. I can't imagine feral
people who turn into werewolves on a full moon night living undetected
in the Hogwarts forest. <snip>
> 
> Tonks:
> 
> Excuse me Carol... werewolves are not "just a legend". Although with
the advent of new and better potions they may be able to keep it under
better control than in earlier days.

Carol responds:

Sorry to be unclear. I didn't mean that werewolves themselves were
just a legend. Obviously, Lupin and Greyback and the unnamed
werewolves that Lupin lives among are real within the confines of the
HP world. I meant that the idea of werewolves living in the Forbidden
Forest was apparently a legend. 

Remember Tom Riddle's remark about "werewolf cubs"? That's not the way
it works, as far as we know. Baby werewolves, if they exist, would be
human most of the time, just as Lupin is. I'm just saying that the
idea of a colony of werewolves living in the Forbidden Forest appears
to be a legend. No one reports the howling of a whole pack of them on
full-moon nights. The only werewolf we ever hear howling is Lupin. And
wouldn't he have been joined on his juvenile excursions on full-moon
nights by other werewolves if they were in the forest, too? 

Carol, who has not forgotten that Snape made Lupin's wolfbane potion
and made it perfectly or that Lupin endangered HRH by forgetting to
drink that potion