Can you Crack the Pigeon's WW2 Code?

A few weeks ago a pigeon was found in a Surrey chimney. Not an unusual occurrence, but this pigeon appeared to have died there in World War 2, and was still carrying the message it was supposed to be delivering. Experts can read the message, but of course it's in code, and there's a problem: the people at GCHQ (Britain's code breaking center) can't just look up the translation, and perhaps understandably don't have the money to invest in cracking it. So if you like code breaking, the 143 character message is at this Guardian blog along with some truly terrible puns.