A Dunedin woman who saw a sparrow plummet to the floor in Pak'nSave and begin to die a prolonged death says she was horrified to learn the supermarket poisoned birds.
Pak'nSave owner Foodstuffs NZ defended the practice as necessary to prevent the spread of disease, but said it was looking into alternatives.
The woman, who requested anonymity, said she was shopping in the South Dunedin supermarket on Friday when she saw the sparrow fall from the air and land with a thud on the ground.
"I went up and it was obviously dying in one of the aisles." She scooped up the young bird before taking it to the customer service desk.
"I asked the lady there, 'are you poisoning your birds?"' The staff member was not aware of the practice, but after making a phone call to a manager she confirmed the store had laid poison.