Could there be a better bird house than a human brain? No.
Bird brain bird house comes in two halves, right brain and left Brain. The two halves are separated for easier support material removal after 3d printing. The two brain halves are designed to be glued together. If printed in ABS plastic. Acetone can be used to bond the surfaces permanently. I modeled the brain based on MRI scans of a real human brain to ensure anatomically correct features. In order to turn it into a birdhouse. I hollowed the brain form and added both an entrance for small birds and a loop for hanging. Another possible use is to turn it into a lamp with the addition of LEDs and a power source.