crows collecting cigarettes Sweden uses to pick up cigarette butts Corvid Cleaning developed a machine

Corvid Cleaning developed a machine that encourages wild crows to collect litter. The birds drop cigarette butts into the slot and get food in return. No cages, no forced training the Fighting litter with crows : r gifs In Sweden, a startup called Corvid Cleaning tested a pilot machine designed to train crows to collect cigarette butts and exchange them for small food rewards. Corvids: the bird family that includes Swedens Corvid Cleaning tested an ingenious vending machine that trained wild crows to clean up streets! , When crows dropped discarded cigarette butts into the device, it scanned the litter and Swedens Genius Experiment: Crows Trained to Clean Up Cigarette Butts?! CROWS Clean Up City Streets by Collecting Cigarette Butts Recycling Council of Alberta

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