Here in Mich porkypine get a lot along with mice while still under the snow. Check any illegal bait pile you know about or cedar swamps also. My german Shep was great for findin whatever I wanted. Never have found setsIf I find any I'll post some pics.
I've read.. along fence lines where they may have to jump, trails to and from bedding area or sanctuary's, or to and from feeding area's is a good place to start!
Yah`mon