Aamused in Austin, TX

One of the strangest wildlife sightings in the Cupertino-Saratoga foothills has yet to be identified: a naked jogger, wearing only shoes, glasses and a black tam hat.

He's cordial and polite, not threatening. He doesn't do anything obscene. He avoids confrontations. A white middle-aged man with a paunch, he isn't much to look at.

But his frequent appearances in the Fremont Older Open Space Preserve are startling hikers, equestrians, runners and cyclists, whose idea of sightseeing usually involves something more scenic.