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碎片内容
英文对照:Six birds have just been trained to pick up rubbish at a French historical theme park. According to the park's manager, Mr. Villiers, the goal is not just to clear up the park. He says visitors are already good at keeping things clean. Instead, he wants to show that nature itself can teach us to take care of the environment. He says that rooks, the chosen birds, are considered to be particularly intelligent. In the right circumstances, they even like to communicate with humans and establish a relationship through play. The birds will be encouraged to clean the park through the use of a small box that delivers a small amount of bird food.
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