[quote=Noyuri]
Hmm how large would that uchfos forest be? My sirens need a deep ininhabited forest.Also, if there are any races that wish to have some kind of history with the sirens, please tell me. (everything from resistance to their voice, to long time allies, to siren hunters etc. would spice up the lore a bit I think.)
[/quote]

I was thinking quite large, but not gigantic. Let's say the size of that map is two hundred miles horizontally and vertically, so Uchfos would be around a hundred and fifty miles long, fifty miles deep. Would take someone 2-3 days to traverse its length on horseback. 

If your Sirens want to live there, that's fine. I'll put it that Uchfos was simply given a wide birth because of the dangers associated with it, and that even to this day patrols of Eblistani warriors scour the forest's borders to keep the Citadel safe.