You can tell autumn has arrived in Central Pennsylvania by the flaming foliage on the trees . . . by the pumpkins at roadside stands . . . and--up in the North--by the SOUNDS you hear: the loud, trumpeting calls of male American elk. This is the time of year when elk are jousting for mates and when wildlife biologists try to get an elk head count. WPSU's Cynthia Berger rode along on the annual "elk survey". Hear her report.