Son says author Richard Bach improving

(AP) Best-selling author Richard Bach, who is known best for writing "Jonathan Livingston Seagull", remains in serious condition at a Seattle hospital but his son says he's making improvements.

Bach was taken to Harborview Medical Center after his small plane crashed Friday about three miles west of Friday Harbor Airport in Washington state. A nursing supervisor on Sunday says Bach was in serious condition.

Bach's son, James Bach, said Sunday that his father clearly is lucid, is responding to doctors and people around him, and has good cognitive function. He says he hopes his 76-year-old father's recovery will be swift.

Richard Bach, who was flying alone, suffered a head injury and broken shoulder after his single-engine amphibian aircraft clipped power lines Friday.