Nachtigall

Baroque organs often have stops for special effects, for instance mimicing bird noises, which are called 'Nachtigall' (nightingale). Information can be found on the German Wikipedia-page.

Seeing the video below inspired me to write my own file.

Here is the file on Thingiverse and there is an expolartion video:

The main reason why it looks like it looks is that this way it could be printed without support structures, everything is at 45° angeles.
My findings were that the model works but I never had the need to use it for anything.