http://www.thestar.com/news/world/article/1292135--wartime-code-found-on-pigeon-bone-still-a-mystery
"Wartime code found on pigeon bone still a mystery
Published on Friday November 23, 2012"
"Martins message contains 27 five-letter code groups. The pigeon itself bore the code name NURP. 40. TW. 194 or NURP. 37. OK. 76, which has allowed the Royal Racing Pigeon Association to figure out it was born in 1940 and almost certainly dispatched from Nazi-occupied France.
The date NURP took off on its mission, one of 250,000 enlisted for war service, remains part of the mystery. One clue: Martins chimney lies on the route between the site of the D-Day landings at Normandy in 1944 and Bletchley Park, the legendary code-breaking headquarters during the war".