Balto:  I just went out to check my defective elec. meter and guess what I heard?
                     "Whoop Whoop Whoop Whoop Whoop...... "
The sound came from behind the house, no residences, swampy area with trees.  It was moving quite fast, not an animal walking in the soft snow speed.  I would say flying if anything.  The sound faded or was going away quite fast.  My best guess on distance would be 75-100 yards back where the spruce stop and the willows start.
My best guess would be a bird of some sort.:bird: 
Aren't you glad when someone else can verify the exsistance of the Loc Ness monster!