The Conservation Minister is accusing the marae that served kererū to Crown ministers of being disingenuous.
Maggie Barry said the protected native wood pigeons were passed to Māori by the Department of Conservation (DOC) for strict cultural purposes and it was a dangerous practice to serve birds that had been found dead as food.
The department would not say whether it should be clearer with iwi around the current practice of handing over dead kererū.
In a statement, DOC said it was still looking into the claims surrounding the marae's use of the birds for food.
A spokesperson for Maungarongo Marae, Che Wilson, said they were working closely with DOC.
Meanwhile, Northland leader Sonny Tau, who was caught in possession of five of the protected species, is due to appear in an Invercargill court on Friday.