I would leave it where it was. And in the spot that he was in. It could have babies somewhere near, etc. I would also observe him for a little bit..to make sure it is not sick or injured. If so, call you local animal control.
And you are not waking him up from hibernation. It looks like a field mouse or vole.
I think it is a field mouse. Its tail is to long for a vole.
Last edited by NoahGrey; September 26th, 2009 at 04:29 PM.