The UK Government Communications Headquarters or GCHQ is asking the public for help after a chimney cleaning revealed a dead messenger pigeon with a secret message attached to its legs. This was common during World War 2 but in this case the GCHQ does not believe they are capable of decoding the message without the Internets help. The photo above is the actual secret message found – can you decipher it?
GCHQ’s experts are now satisfied that the pigeon-borne message assumed to have been sent during the Second World War cannot be decoded without access to the original cryptographic material.
The GCHQ code-breakers were set an intriguing challenge following the discovery of a carrier pigeon skeleton by David Martin in the chimney of his house in Bletchingley, Surrey. The message – hand-written on a small sheet of paper headed “Pigeon Service” – was found in a small red canister still attached to the pigeon’s leg bone.
Unfortunately, much of the vital information that would indicate the context of the message is missing. It is undated, and the meaning of the destination – given as “X02” – is unknown. Similarly, while the sender’s signature appears to say “Sjt W Stot”, nothing is known of this individual or their unit.
During the war, the methods used to encode messages naturally needed to be as secure as possible and various methods were used. The senders would often have specialist codebooks in which each code group of four or five letters had a meaning relevant to a specific operation, allowing much information to be sent in a short message. For added security, the code groups could then themselves be encrypted using, for example, a one-time pad.
The message found at Bletchingley had 27 five-letter code groups, and the GCHQ experts believe its contents are consistent with this method. This means that without access to the relevant codebooks and details of any additional encryption used, it will remain impossible to decrypt.
Some 250,000 pigeons were seconded during the Second World War. They were used by all arms of the services as well as the Special Operations Executive (SOE). They carried a wide variety of messages, flying the gauntlet of enemy hawk patrols and soldiers taking potshots at them to bring vital information back to Britain from mainland Europe.