At first glance it does look like a pig but I think what looks like the ear is the tail of a black dog facing away from your camera,the tail is wagging to the left. You may be correct on the pig just offering another opinion.
Wish that when I got the card out the snow was still there. When I got home and saw this I wanted to go back to the location but the 45 minute drive is not helping out my gas. I will be back on Saturday to rid some of my squirrels.