His keepers stayed with him until it was dark and he'd fallen asleep. They were back before first light, but he'd gone.
This morning the SPCA, which was made aware of a sighting in Birkdale on the North Shore, immediately rushed out, but by the time staff arrived he had flown off.
Chapman noticed Mabo in her backyard this morning, but did not know what to do with the odd-looking bird. So she called her mother who used to breed birds and had experience with cockatoos.
Mum Alex McMillan got a call from her daughter explaining the situation, which she had a hard time believing, especially when Chapman told her mother it was a black cockatoo with a scarlet tail.
"I said, 'Are you serious?'
"I told her to keep it entertained and headed over with a bird cage and some sunflower seeds," McMillan said.
After arriving she managed to get Mabo into a cage by coaxing him down from an overhead cable with some seeds.
Thinking the bird had come from the Waitakere area, they contacted NZ Bird Rescue in Green Bay, which then got in touch with the zoo.
Of all the places Mabo could have landed, neither McMilllan nor Chapman could believe he'd chosen their backyard.
"I used to have a sulphur-crested cockatoo, I've got canaries at the moment," McMillan said. "I couldn't believe it, he was a little bit scared."
Auckland Zoo posted its thanks online tonight.
A spokeswoman said "a very vocal and friendly Mabo turned up in Jensie's garden this morning and made himself at home".
"Mabo's back home with Daku [his Zoo mate], who was delighted to see him. He's been tucking in to some of his favourite treats (sunflower seeds and nuts) and has now settled in for a quiet night."