Snow piles and signs of spring

How long will the snow piles at Walmart last? The warm weather of the past week has melted most of the snow that is not in drifts or in piles from snow plowing.

Ignoring the snow, workers at Walmart were starting to set out the spring garden supplies in their parking lot--another sign that spring is on the way.

I saw a killdeer and a robin this afternoon. I know that some people have seen robins all winter long, but I have not.