Big Foot Tracks in the Snow - What Am I?

As previously stated, I am the only one in my suburban neighborhood (that borders woods) that admits to seeing wildlife in my woods and back yard.  Being a city girl (raised in Boston, MA) I am not very familiar with undomesticated animals.

You see, last year in early summer I saw what was to me a HUGE bird.  It was at least 4 feet tall with a very long neck and a very large butt of dull toned feathers about 12-15 feet ahead of me.  My pomeranian and I had just walked into the woods and we both froze when we saw the bird and we startled it as well.  I was doubly shocked when it started to lift off - it looked way to heavy to gain any height and as it lifted I worried about it clearing the trees - but it was OK. 

I've never seen it since...but what I have learned is that when I hear all kinds of "chattering" in the woods it is definitely indicative of a less than ordinary presence. 

Now, last January when I saw these tracks in my back yard I took pics so that fewer people called me crazy.  What baffles me is the stride....as it only looks like one foot at a time with 12-15 inches inbetween.  Also, the size of print which is enlarged due to the snow I'm sure...is still about 10-12 inches.

So what do you think?

The tracks went from the woods in my back yard to the driveway...have more but this is probably the best representative.