What is my sister holding a doll?

It seems to be a Japanese or German song ~ It means that dad is a soldier who drank a lot of wine and went home to kill his mother with an axe, and then asked his children to bury his mother under the big tree ~ Dad cut his children with an axe, and then pulled off their skins to make dolls.

That song was sung when my sister came to the garden crying with her doll on her back, which made the birds in the tree laugh ~ I can't remember the rest ~ But it means that the bird asked the doll why she was crying and said the above meaning ~ And this song seems to have been in the 1980s ~ And it seems that Phoenix TV has released this song for translation before ~ I have always liked listening to this song, but it is not in Chinese.