This a Berlin song? No way. Maybe you should start a thread called Teargarden and other Chicago Songs, my beloved moon... ;-) But SP and Berlin? I don't see any connection.
I'm more with moonpi on this. When it came out, I remember to have sought the link with Tiergarten. I was sure of the link at this time. Many references to animals in this period, also in mythology. A kind of play on words. Don't you find the world like an animals' world at times?