Throughout the day we watched the nest closely hoping to catch sight of a pip (the first hole a hatchling makes in the egg). The female was quite attentive to the eggs, often raising up to peer down intently at them, perhaps indicating that she can feel or hear the chicks efforts to break through the egg. There were some intriguing views of the eggs which suggested that here might be small pips started...but nothing definitive was noted. We'll simply have to wait and see what tomorrow brings.
Given the 1st egg's delivery into a snowy nest there has been speculation that this "late" hatch indicates a problem. Keep in mind that this pair has incubated longer in the past. In fact, the first egg from last year was incubated for almost 39 days (38 days 20 hours).