A French theme park put birds in to waste to clean up. Six crows are trained to be cigarette butts and small pieces of waste to pick it up and in a recycling bin to throw.
For the experiment the historical park with roeken, a type of crow that is very intelligent. If the birds are a piece of waste in the waste bin to throw, they are rewarded with food.
The parkdirecteur just want to make the park clean, but also showing how nature itself can provide. ‘Roeken are very intelligent and love to communicate with people via the game’, according to the parkdirecteur of Puy du Fou, in the Vendée in the west of France.