A stranded black swan caused a flurry of phone calls for Graham Nichols last week.
Mr Nichols, who lives on the outskirts of Port Pirie, was amazed to see the bird in his carport last Wednesday.
"I opened the garage door and he walked inside," he said.
"We put some bread there, but the bird did not eat it. I didn't know what I would do with it.
"I phoned the council, the fauna and wildlife department, the RSPCA and police to no avail. We were trying to do the right thing."
Finally, Mr Nichols took the bird to veterinarian Phil Taylor at his Solomontown clinic.
Mr Taylor said the swan had been "neurologically challenged".
"It could not hold up its head. There was something wrong with it. Sometimes they are released in the wetlands," he said.
He said the bird was put down rather than set free.
"If not, it would have just floundered and something would have feasted on it," he said.
The ill-fated bird may have come into town over the salt flats stretching in front of Mr Nichols house.
His kind have been seen on the Pirie River.