Similar Material ce chap. 13 pp. 160-167 Instinct—Wisdom Programmed Before Birth Probing the Mysteries of Migration Awake!—1995 Building Time in Birdland Awake!—1971 The Wonder of Instinctive Wisdom Awake!—2007 The Pathfinders Awake!—1979 Instinct—Wisdom Programmed Before Birth Awake!—1981 Astonishing Facts About Migrating Birds Awake!—1981 Swift in Name—Swift in Flight Awake!—1999 A Fragile but Hardy Traveler Awake!—1996 The Amazing Arctic Tern Awake!—2017 True Monarch of the Air Awake!—1978