A blue macaw from the Adelaide Zoo has been found safe and well, two days after flying away during a routine training session.

Zoos SA Presentations and Nature Theatre manager Nic Bishop said the parrot, known as Manu, took off from the zoo on Boxing Day morning.

Staff had been looking for the bird ever since and had asked the public to help.

Mr Bishop said a man contacted the zoo after spotting Manu in a tree outside his house in Prospect, near the parklands in North Adelaide.

"The gentleman thought, what is making that noise out in that tree, is it a raven?" Mr Bishop said.

"He was absolutely flummoxed to see this exotic, really gaudy bird sitting there looking at him and thank God he did because he rang us."

"He didn't even know we were looking for Manu so we really have been smiled upon by the fates."

After three days of searching from dawn to dusk Mr Bishop said it was a huge relief when Manu flew down onto the hand of one his colleagues.

"It was a really nice feeling when he came around the corner and there was Brett with the bird on his hand, really calm and steady, just so relaxed and just ready to engage and step into his travelling pet pack and come on home, he said.

"He recognised us straight away."

Mr Bishop said Manu will be having a short break from training to recover from his adventure.

"He will have a full check over by our veterinary team and just ease him back into his diet ... because we don't know what, if any, food he has been able to access," he said.

"I'm sitting with him at the moment and he's just sitting in his aviary with a nice full cup of food, taking it very easy and I think he's probably pretty tired, so we are going to let him rest and enjoy this week."

The zoo said Manu appeared to be in good shape after his adventure but would be monitored to ensure he is fit and well.