Spring is here. Just about. Though many a coat collar may still be turned up and many a mug of mulled wine may still be quaffed to help calm clacking teeth, the calendar, stubborn to the last, insists that spring begins on March 20. Time, then, to begin thinking of outings in the open air ... getting next to Nature ... dusting off the rod and reel and matching wits with our finny friends who inhabit the fresh flowing streams of our native woodlands wild. No true sportsman, of course, would ever consider partaking of these pleasant pastimes all alone; a jolly feminine companion is just as necessary as the creel, the waders, and the hat with the hooks in it. Our candidate for such a companion is Zahra Norbo. After copping the Miss Sweden title three years ago, Miss Norbo came to the U. S. of A., and appeared briefly in a couple of movies and several TV shows, notably the Groucho Marx slot, where her tape-busting measurements so unsettled Groucho that he couldn't remember his ad libs. It has been reported, in another magazine, that Zahra, though she will oblige photographers by peeling down to a bikini, definitely will disrobe no further. "I would feel uncomfortable," she was quoted as saying. Miss Norbo's discomfiture dissolved when we approached her with the notion of being our Miss March, so, as you unbend this gatefold, you'll find all five-feet-seven of her fabulous frame blithely bared to the bracing breezes of the vernal season.