It was hard to say whether the behaviour of dog owners and visitors walking their pets in the area had changed since word got out about the kiwi deaths.
"But it does empower people to say something if they see someone walking dogs without a lead. It gives them more ammunition," he said.
Meanwhile, Michelle Impey, executive director of Kiwis for Kiwi, a charity supporting community-led kiwi conservation projects, said dog attacks on the endangered bird were frustrating and preventable.
"All across New Zealand we're fighting a battle in the bush, trying to knock down stoats and other predators so that kiwi have a good chance of survival. An uncontrolled dog undoes all that good work," she said.
"The solution is in our hands. Dog owners have to control their dogs in areas where kiwi live. Or even better, keep their dogs out of kiwi zones."