crows collecting cigarettes trained to clean up cigarette butts on Swedish streets Crows collect cigarette butts in

Crows collect cigarette butts in Sweden for food reward Photo by Mind blowing facts (@blowingfacts365) June 15, 2026 These birds are being recruited to pick up discarded cigarette butts from the streets and squares of a Swedish city as part of a cost cutting drive., The crows carry out the task as they receive some When Birds Help Clean The City In Sweden, researchers and innovators have experimented with training wild crows to collect discarded cigarette butts in exchange for food rewards. using simple learning mechanisms, the A Swedish startup, Corvid Cleaning, developed an innovative machine that rewards crows with food when they deposit cigarette butts into a collection slot. The system is based on reward based learning, a

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