The bull's owner, Kyle Underwood, threatened McCow with the meatworks after he opted first for France and then Argentina in their matches against the All Blacks.
Mr Underwood, 22, said he was pleased McCow had finally made a patriotic prediction, but conceded the calf's endorsement could actually be a suckle of death.
"But I'm pretty glad that he's backing black again, because that was sort of the purpose of him in the first place - to be a good omen."
All black, except for a silver fern on his forehead, Richie was the cream of the crop from the day he was born.
The young bull has beefed up considerably since the Herald first introduced him to the world, and has sprouted a small set of horns.
Mr Underwood said he was confident Maungaturoto's most famous celebrity animal had finally got one right in picking the All Blacks, and they would beat the Wallabies on Sunday.
"I'm looking forward to Richie McCaw sending Quade Cooper home with his tail between his legs."