Thanks for the repellent idea. Definitely something to look into. Yeah, I knew there was a bobcat on the property. Saw it last fall. Hasn't caused any problems yet. As far as fox go, they are everywhere. Only had one attack early this summer and nothing since knock on wood. But there are plenty of farms with plenty o' birds to choose from.I wish there was some way i could help, but other than offer to lend you my own game camera i don't have much to offer but my listening ears (reading eyes??)
one thing you might look up is some kind of odor repellent. I know they get mixed reviews but it may be worth a try? What i am talking about things like rabbit or deer repellent ( i think they are based of wolf pee odor) except for something that a wolf would avoid. maybe another wolf's smell would deter your rogue wolf? but then again it could also draw it in, so maybe do some research.
finally, Some of the DNR guy's credibility returns now that we know that he didn't think your paw prints were actually fox or bobcat, but yikes that those are out there too!