North Otago SPCA workers are angry after six kittens were found dumped in a sack next to a railway track in Pukeuri.
The 4-week-old tabbies were found this week by a member of the public who saw the sack moving.
North Otago SPCA shelter manager Maree Corder said there was no excuse for dumping animals.
"It's happening everywhere. The lady who found this litter has found dead ones before," Miss Corder said.
The kittens will be ready for adoption in two weeks.
Miss Corder said although someone had obviously dumped the litter, the kittens were in good health when checked over by a vet.
The SPCA is constantly dealing with dumped kittens and recently found a litter on its doorstep.
"People have to understand we have a quota and we might have to turn them away," she said. "We should be the last resort."
Miss Corder said caring for two litters of kittens took a lot of time and money.
"The older litter is now 8-weeks-old and ready for adoption and we have been looking after them for the past five weeks," she said.
"I'm upset that people don't ask for help.
"We don't appreciate them being dumped off."
There are a number of kittens and adult cats at the North Otago SPCA that are now ready to be adopted.
For more information contact the SPCA on 434 8196.