I don't think bobcats ever left, they're just rare. I find prints occasionally when I tromp around in the winter. (North-central WI) I've never seen one, though. There's lynx once you get north of HWY 8. We've seen them. Again, they're rare. We had several sightings of cougars in the late 80s around our place, but nothing since then. For about three years, people including me saw them, and then they seemed to disappear. The rumor was that the DNR planted them on a neighbor's 320 acres. Made sense, since we always saw them near our 150 acre property or theirs.
Now that there are wolves around, hard to say what it might do to the cat situation. There should still be plenty of rabbits and rodents, not to mention deer and turkeys for all of them to eat.
In the spring of 2007 I was the unfortunate recipient of an injury cause by a damaged carbon arrow that shattered on release of the arrow. I was in the yard going to take a few practice shots before dinner and the second arrow is the one that did the damage. That day will forever be burned in my mind. After I release what happened I made mistake #2 I pulled the tail shaft of the arrow out of my hand causing more damage.
Thank goodness that my wife was home and was able to...