Psychologists at the University of York and University of St Andrews have uncovered the first evidence of tool use by greater vasa parrots - researchers observed the birds adopt a novel tool-using technique to acquire calcium from seashells and also the active sharing of tools among themselves.

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Psychologists at the University of York and University of St Andrews have uncovered the first evidence of tool use by greater vasa parrots - researchers observed the birds adopt a novel tool-using technique to acquire calcium from seashells and also the active sharing of tools among themselves.