I saw the 1st butterfly of the year today during my after lunch walk. Here is the only picture of it I could take with my iPhone.
It was probably a cabbage white (Pieris rapae). According to Glassberg's Butterflies Through Binoculars, this species appears in New York in the beginning of April, in North Carolina in mid-March. Thus, seeing it in Maryland near the end of February is arguably a sign of the coming times.
May it find enough flowers to feed on and a mate to propagate its good genes.