It is not clear how well a rabbit-poisoning programme on the grounds of Dunstan Hospital is working.
The Southern District Health Board introduced rabbit control measures at the Clyde hospital in November after rabbit holes and droppings were found on the grounds.
SDHB facilities and property general manager Paul Pughsaid the fortnightly poison-baiting programme using pindone rabbit pellets would continue until March and be followed by a monthly baiting plan.
It was difficult to know how effective the bait stations had been at this stage because of the unusually high rainfall over the summer, which meant grass was plentiful, and rabbits preferred to eat grass than pellets, he said.
"Usually, in Central Otago, dry summer conditions cause the grass to brown and die back, which would more readily prompt the rabbits to consider eating the pellets."
