I would like to polish up this project enough to share plans and training guidance so others can build and experiment with it.  I already got some great feedback for better names for the project, but haven't settled on anything yet.

The feeders built by Hans Forsberg and the Morsings are great, but require a lot of space and my guess is they cost well over 100 EUR for components and materials.

The Crowbox is already available as a kit, but also costs well over 100 EUR to get parts cut and for components. The plexiglass alone costs over 100 EUR.

The Crowkit seems to be more or less abandoned, though there are sometimes kits available. However people seem to be price gouging on these. The auger dispenser is also reportedly not very reliable. Kits including just some 3D printed parts and a handful of analog components cost 100 EUR or more:

• https://www.etsy.com/listing/212149291/crow-box-vending-machine-kit-crows-bring
• https://brittneealexus.com/shop/ols/products/crow-box-kit  ($350 with the enclosure!)

The designs I've shown here can be built for 50-70 EUR including the enclosure if you have to buy the whole BOM (nothing already lying around your workshop). The dispenser could be slightly improved as it occasionally (1 in 20 dispenses) does not dispense a peanut (just a crumb sometimes) and sometimes (1 in 10) the peanut takes 5-7 seconds to come out.

I had been holding off on this since I'm primarily getting pigeons and wanted more examples with corvids, but the pigeons are showing promise. Switching from peanuts to cat or dog kibble would probably solve this problem (pigeons don't like it as much as peanuts but corvids like it) and I will give that a try when I return to NL next month.

Anyway - if there is anyone out there that is interested in collaborating with me on this, I am eager to make this project available and accessible so people interested in experimenting have a lower-cost alternative to the existing solutions, and with easier to source components. SBCs are still hard to get and expensive these days. Also I may be tunnel-visioning here and could use some fresh ideas :)