It was, indeed, a very rough March. But April is here and things are starting to pop. One sign of spring is the number of male robins on the greening shoulders along roads. Why they hit these shoulders first before the lawns is a question that has been nagging me for years, but that’s the way it is. On Sunday afternoon along Scuttlehole Road in Bridgehampton there were several, all males, of course. Females usually return several days after the males.