After animal deaths, Wildlife Foxton Trust's live-capture trapping programme has been halted, with Horizons Regional Council taking back all the traps.
Last week the trust said it had not been regularly checking its live capture traps.
Dead animals were found in a number of them.
Horizons biodiversity coordinator AaronMadden said the council didn't have certainty that animals wouldn't be left in traps.
He said there was no time frame to replace the traps.
The trust has said it is looking at whether kill traps could replace the live-capture traps.
Mr Madden said the downside of kill traps was the possibility of killing pets, which is why live-capture traps were used in the first place.
The trust used volunteers to check the traps.
"Personal health challenges and the weather has meant that our unpaid volunteers were unable to maintain their programme but did not advise us," Trust chairman John Girling said in a Facebook post this week.
"This is not offered as an excuse and Wildlife Foxton Trust should have checked up on them to ensure that the traps were still being managed well."
The two-year-old trust's main stated aim is to build a wildlife tourism and education centre at a site on the banks of the Manawatu River Loop in Foxton.
The trust aspires to raise around $3 million to get the centre built and operational.
Its latest accounts show general accumulated funds of $12,000.