Wolf in sheeps clothing

Strange heading for a Pan site but I have discovered a peculiarity on my bike that I will share with you.

After a long ride, and I hope to have more of them now that the good weather is with is, and I have parked my Pan up on my drive, I have noticed that my bike "talks" to me..........No honestly it does !..........as the engine is cooling I get a distinct "bleat" every minute or so that lasts for a few seconds............its quite spooky..........