Fox in snow

I love watching animals in the snow. Sometimes it's  reminders of animals in the snow

The fox
Must have used
The sidewalk
Last night.
It had been cleared
Yesterday
So it was only
Today's snow
Which showed
Fox tracks
Singular
As he walked
Each foot
In the print
He left
In front.
How does he do that?
I wonder
The daintiness
Of the fox.
We were not awake
To see him
Last night
Make
His singular prints
In the snow
Up the sidewalk
To the front door.