This is really neat. The "guy" is Hans Forsberg and his Youtube channel is great: https://www.youtube.com/channel/UCtkv3wuEP-Veur4iYJWkBgA/vid...

Lots of insightful videos on how he builds his devices and trains the birds to use them. For example, a simpler device where pressing a red button dispenses food: https://www.youtube.com/watch?v=alpCl6xDSRU