The CrowBox
An open-source DIY feeder that teaches wild crows to drop coins into a slot in exchange for peanuts, with build guides and notes on corvid intelligence.
No account needed · sign in to keep your taste everywhere
Stumble onto more like this
One click takes you to a page you didn't know you were looking for. Rate it and the next one lands closer to your taste.
Add to Browser — it's freeWorks in Chrome, Edge and Brave. No account needed.