Aircraft operated on behalf of Hans Georg Näder, owner of HGN Productions & Verlag and also a Rolling Stones fan (hence the Stones logo in front of the engine). The ape on the tail is a reference to the Deutsches Primatenzentrum (German Primate Center) in Göttingen, with which Mr. Näder is also associated.
Hilarious: This Dutch Chinook had a bird strike over Afghanistan. That caused a clear visible dent in the black radome. The little damaged and robust built Chinook could continue its flight. Later during my deployment to Kandahar, I told this story to an F-16 pilot on QRA duty. With a complete astonished but spontaneous look he said: "Huh, how's that possible?? Birds can only hit the rear of a Chinook in flight!!". On the picture, the concerning H-47 is seen over one of the few lakes in Kandahar province. Chinooks stole my heart during the deployment. So versatile and such a dangerous mission!