For my bird house I used a 240g "Mutti"can. But you can also adapt it to your can. The attachment does not have to fit the millimeter, because you can attach it to the can with the rubber band. If you want to arrange several bird houses, you will find someone here who has already developed a “spacer”:

 https://www.thingiverse.com/thing:508014/files

 But I haven't tried it and it won't fit with every size.