I tried to find a 2 star wolf on my local mountain near the starting area, it is one of the higher mountains, no joy, read somewhere the further out you go the more chance, so almost at the edge of the world, to the north in my case, half way up a tall mountain I got lucky. Tamed and shipped back a pack of them, that was an adventure on the high seas with serpents in it's self, one of the wolves became serpent food sadly.

Since then I have spent a lot of time mining the silver from my local high mountain, lots of in game nights, and still had not encountered a 2 star wolf, in packs, plenty of 1 star wolves have appeared though. Just recently encountered my 2nd 2 star in the wild, way off to the north west on a mountain with the Moder altar, they seem very rare to me and I am around day 700 in game.