Blood huting: Am I doing something wrong?

[Vynd]

I don't have much experience with Blood Magic, and I am experimenting with Vanheim. I have one of my level 1 Blood mages conducting a blood hunt, in a province with a population of about 6,000. He's been hunting for 3 turns now. The first two turns he found nothing. Not only that, he did such a bad job that he didn't even bother any villagers. On the third turn, he still failed to find anything, but angered something like 4 people.

So what's the deal here? Am I having a run of bad luck? Are level 1 blood mages just really, really, bad at blood hunting? Or am I doing something else wrong?