I have a vole problem. Sadly it took me a WHOLE YEAR to figure out that that trail was NOT a snake trail (welcome) and really a vole (unwelcome). I finally figurd it out in the middle of winter when one got into my house. At that point, I couldn't do a darn thing about it because I had 5' (yes feet) of snow around my house. Snow melts, winter clears out, and I had a mess. Lost a bunch of brand new trees mainly. I've been baiting, plus I'm trying to cut off a food source of grubworms. I did see some vole holes out by the coop/run and now I'm wondering if they might be a problem later. Logic tells me probably not since my coop is sitting on cement, but I'm the paranoid type so I'm hoping I don't find a big fat hole in my coop wall come next spring. Dirty little buggers. You don't want these things.