It actually hadn't occurred to me when I posted my initial Phil day bit that I share this month with another famous Phil. It's perfectly OK by me. I respect and love the little guy.
Wikipedia has a fairly good article which, among other things, lists the origins of Groundhog day. For its worth, only Punxsutawny Phil saw his shadow of the various groundhogs which indicates an extended winter by the minority report or an early spring by the majority.