A victory for amateur historians everywhere. I haven't found an official press release yet but the story has made some tabloids and seems legit.
The Daily Mail
The dispatch, sent by 27-year-old Sergeant William Stott, identified German troop and panzer tank positions in Normandy and highlighted ‘Jerry’ headquarters and observation posts to target for attacks.
It read: ‘Hit Jerry’s right or reserve battery here.
'Troops, panzers, batteries, engineers, here.
'Counter measures against panzers not working.’
Apparently the pigeons were sent in pairs, so while one died in a chimney the other may have reached it's destination. The sender was also KIA a few weeks after the message was sent. This article from a few weeks ago has a lot more information on Gord Young and his decryption efforts:
Taking a crack at Second World War pigeon message code
Young is the editor of Lakefield Heritage Research, a group of volunteers who help people research Peterborough military history. He characterizes some of the messaging as “crib notes” and said he has seen similar coding in his great-uncle’s First World War book and other similar material that has passed through his hands over the years.
Young believes the message was sent by an artillery observer stationed on the front lines in Normandy, France, updating his superiors on German enemy movements.
“It’s artillery code,” Young said. “You often see the same crib notes like that. A few of them are quite common.”