Billy,
Thanks for the excellent link.
We have never measured the tracks, but we've always noted they are huge. Armed with this new knowledge we will start paying more attention to the details and get some measurements.
Peterbilt,
These pictures are from late Fall of last year, right around the time we took the cameras down.
We just put a camera up this past weekend and my boy retrieved some new pictures today. However, so far all we have is a few shots of raccoons and a coyote, but we are keeping our fingers crossed that ol' Blacky is going to show up again as usual. We'll just give him a little time. It's still pretty early.
Meanwhile, here's a few more pictures from late last Fall:
Skunk