Volunteer crows clean up the city

Crows may not be the most attractive in appearance, but their sharpness and docility counterbalance the aesthetics.

Although he is a songbird, he can't really dazzle with his voice. However, his mind is what impresses. Sweden has not only recognized this ability, but is even exploiting the potential of crows.

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These black birds play an important urban cleansing role. They were instructed to pinch the cigarette butts and take them to a specified location. The birds volunteer. They have received some training, but then they do this very important work voluntarily.

If man can no longer be taught not to throw butts, crows should be more reliable.

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(Source: homepicture.com | Pictures: Pixabay)

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