Fun little project that uses the organic supports from PrusaSlicer 2.6 (alpha right now). Just handle the supports a bit different. Switch top contact Z distance to 0 (soluble) and perhaps switch of the interface layers to weld the supports to the birds. You might want to exclude some areas from the birds (eyes) from three generation. You can see all this in the example.3mf file.

The result should be  some trees with birds.

The design works best with two colors (MMU, AMS, Palet, tool changer etc.) but you can print it with a single color too. 

If you're looking for a version that generates one tree you might want to look at this version:  https://www.printables.com/model/449855-birds-without-a-tree

If you're looking for more decorative prints you might want to check this little collection: https://www.printables.com/@Wilko/collections/36089. If you're looking for more multicolored prints you might want to check this collection https://www.printables.com/@Wilko/collections/177810.