There was a similar project — under the delightful name “Crowbar” — to train crows to gather cigarette butts. Ran out of funding. https://www.crowdedcities.com

There was a similar project — under the delightful name “Crowbar” — to train crows to gather cigarette butts. Ran out of funding. https://www.crowdedcities.com https://www.crowdedcities.com