Similar Material it-2 “Swallow” Swallow Aid to Bible Understanding Lessons From the Birds of the Heavens The Watchtower Announcing Jehovah’s Kingdom (Public)—2016 Probing the Mysteries of Migration Awake!—1995 It Pays to Swallow Your Pride The Watchtower Announcing Jehovah’s Kingdom—1981 “Observe Intently the Birds” Awake!—2014 Where Do You Choose to Be? The Watchtower Announcing Jehovah’s Kingdom—1979 The Miracle of Bird Flight Awake!—1978 Birds Insight on the Scriptures, Volume 1 Birds Aid to Bible Understanding Birds in Flight Awake!—1978