It took me a second to grasp that a type of parrot is responsible for attacking and eating sheep. Even if it's a large parrot, the fact that a 1kg bird can tear and eat the living flesh off a 100kg ruminant is remarkable.
Thus farmers can now ask for a compensation for each old cow that slips on a clift, or has a disease too expensive to treat.
Maybe Keas are enough smart to eat an alive sheep (a lamb would be much more probable), maybe once in a blue moon, but disinformation and rumour spreading for money is a global problem that biologists face.