By Mel Dyer Yes! Penn Branch has an urban legend. That of the Big Bird Witch or Hawk-woman, who haunts our wild, emerald hills... If you're over 35 and grew up in the Southeast D.C. neighborhood, Penn Branch, in the mid-1960s, ..you've probably seen or heard of this creature, at one time in your life. You probably thought you were imagining things ..or that it was just crazy-talk. You may have even heard that it had a woman's head and white, bulging eyes, ..or that it was a witch. While I don't believe that part, I've seen the creature that might have inspired this urban legend, with my own disbelieving eyes, ..perched menacingly on a rooftop, at Carpenter Street and Highwood Drive! ...One neighbor recently told me that this thing, ..which she described as a witch in black feathers, with a chalk-white face and large, staring eyes, ..glided over a backyard family gathering, back in the mid-70s, and scared the hell out of their guests! An electrician, who no ...