Since I wanna try out this awesome project: Building a Poor Man’s Deep Learning Camera in Python I needed a Bird feeder first, so I made one.
It's just two files (base and roof) you should be able to print the base without support.
The roof just slides on the notches of the pillars, you could add a small tip of hot glue to secure it.
Edit: added additional seed holder for loose seeds. you can print it separately and just slide it over the existing seed holder, will also cover the mounting screws.
Geeetech I3 (Prusa clone)
you should be able to print both parts without support, but some support on the base might help (depending on your printer)
I designed it from scratch using fusion360