Seven kākāpō have died and more are seriously ill. Auckland Zoo vet hospital is one of three centres responding to the unprecedented crisis. Kim Knight and Michael Craig spent a week alongside the staff and volunteers fighting to save a critically endangered species.

The race to save the kākāpō smells like breakfast cereal. Warm, brown mush, drawn into a syringe attached to a plastic tube that will be guided down the throat of a bird waiting on the other side of a red quarantine line.

"People are putting their hearts and souls into this," says Dr James Chatterton, Auckland Zoo's