I posted a telegraph from the Berlin telegraph service which refers to the bombardment of Normandy with leaflets and with pigeons as "terrible." It is at: http://worldwar2militaryintelligence.blogspot.com/ Other posts at this sight are: Gestapo uses pigeons to trap Dutch The Illustrated London News post-war article about intelligence delivered by pigeons-posted in September 2015 1943 correspondence reveals use of pigeons in Operation Cockade-September Germans drop decoy pigeons to combat threat of intelligence delivered by British pigeons-August 2015 Documents from WW2 reveal German Secret Service use of pigeons-August German reaction to intelligence being sent by pigeons in WW2-August 1943 letter explains use of war pigeons for espionage-August The Brave Message Writers of Occupied Europe-August These posts include documents from The National Archives, London, UK. (c) Crown copyright images reproduced by courtesy of The National Archives, London, UK