Similar Material it-1 “Bulbul” Bulbul Aid to Bible Understanding Even Birds ‘Know Their Time’ The Watchtower Announcing Jehovah’s Kingdom—1980 Feathers—A Marvel of Design Awake!—2007 Feathers—Marvels of Design Awake!—1981 The Miracle of Bird Flight Awake!—1978 Just Keeping Up Appearances? Awake!—2004 Birds Insight on the Scriptures, Volume 1 Crowned Cranes—Colorful Crested Dancers Awake!—1997 Birds Aid to Bible Understanding Date Aid to Bible Understanding