crows cleaning up cigarettes Swedish Company Trains to Pick Cigarette Butts Wild crows trained to pick

Wild crows trained to pick up cigarette butts in Swedish street cleaning project Crows in Sweden help clean streets by exchanging trash for food Sounds like a good deal to me The Swedish city of Sdertlje has trained crows to collect cigarette butts in exchange for food. The intelligent birds drop discarded cigarette ends into A Swedish company has been training crows to pick up cigarette butts in an effort to reduce the cost of cleaning litter off the streets in Sdertlje, near Stockholm., Corvid Cleaning has developed a

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