les epesses - In the French amusement park Puy du Fou, crows help to clean up waste. Puy du Fou at Les Epesses in the Vendée department is the second most visited theme park in France. The park has history as its theme, with shows in which trained animals often have a role.
The crows are trained so that they can pick up cigarette butts and other waste. Every time the birds bring something, they receive food as a reward.