Lupin talked about how some werewolves have banded together under Fenrir Greyback in a sort of underground movement. I got the impression that they live together/near each other because they are forced to live on the fringes of society and could use each other for support.

I was wondering how would they live like that? Would a group of werewolves live in an abandoned house / underground shelter? In the woods? Would most of them be unemployed? What kind of employment (if at all) would there be for werewolves? How do you imagine their organization would work?