My sister in law lives in Montana and bears come through her yard often. (this is pretty bad but you were asking) she emailed me a picture of a huge pile of bear poop. It would cover a dinner plate and had parts of apples in it. The apples came off of her trees.
I know it might gross out some, but the info was needed..:O) Would hate to be on garden tractor and come face to face with a bear...yikes, you'd know it was human poo that you found..all over the tractor.....LOL along with undigestable dentures..