Mystery jumping spider

Once again, the morning arrived with a mountain of writing work that kept me indoors, and by the time the journalism was finished and out the digital door, the weather was starting to fail... this is how we pay for the easiest of winters—with the worst of springs. But, during the one small stretch of almost sunshine before the seemingly non-stop storms returned, I did a quick exploration of the yard and surrounding woods, and when I got back and walked up the stairs to the kitchen porch, I noticed a tiny jumping spider on the railing. The members of the spider family Salticidae have a characteristic way of moving—the "jumping" part of the family name is absolutely apt—as well as a giveaway eye pattern you can see here (they also have two other smaller eyes that are harder to spot). This one had recently ambushed a prey item, and I apparently interrupted its dinner preparations. From its expression, I'd say it looked peeved. (So far, incidentally, its identity has proven elusive—so it often goes with spiders.)