sweden crow cigarette In Sweden, a surprising idea is turning crows into allies in keeping cities clean. Instead of hiring crews to pick up butts, one of the most common types of litter, a Sweden deploys 'easy to teach'

Sweden deploys 'easy to teach' CROWS to pick up cigarette butts on city streets Daily Mail Online In Sweden, an innovative project has demonstrated how intelligent birds can help tackle urban litter. Researchers and a startup called Corvid Cleaning trained wild crows to collect cigarette butts from the streets Rumor that city in Sweden trained crows to pick up cigarette butts is for the birds The Guardian Crows 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 wild birds carry A Swedish startup tested smart machines that reward crows with food for collecting cigarette butts. The project, developed by Corvid Cleaning, focused on a small pilot in Sdertlje near Stockholm. The machines

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