Swedish firm deploys crows to pick up cigarette butts

Clever corvids become newest weapon in Sodertalje's war against street litter

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 out the task as they receive a little food for every butt that they deposit in a bespoke machine designed by a startup in Sodertalje, near Stockholm.