If I'm not mistaken, Phil's "predictions" are just written down ahead of time, while other groundhogs have to actually move towards a sign that says "early spri

If I'm not mistaken, Phil's "predictions" are just written down ahead of time, while other groundhogs have to actually move towards a sign that says "early spring" or "long winter". I wonder if there is an easy way to tell which groundhog uses which method and if the groundhogs are more accurate about climate change than the humans.