The woman who found two-year-old cockatiel Smokey wanted to be sure she was speaking to the rightful owners.
So she passed the phone to the bird, and it immediately squawked its name, reports the Daily Post.
Smokey went missing after flying out of the door of Mr David Edwards' home in Gwersyllt, near Wrexham.
His two-day adventure in the wild came to an end two miles away in Wrexham, when he perched on accountant Sue Hill's shoulder.
She took him in and phoned the RSPCA which put her in touch with Mr Edwards who had reported his cockatiel missing.
Sue said: "I called and spoke to his wife who told me her pet was called Smokey and asked me to put him on the phone.
"As soon as he heard her voice, he stopped chirping and began saying 'Smokey', it was very funny. That was the first time the bird had spoken and it was then I was sure that he belonged to them."
Mr Edwards said he was "over the moon" to have Smokey back. He said: "Smokey belongs to my 16-year-old grandson but lives here with us because we have two other birds.
"They all have free rein over the house but I hadn't realised Smokey was upstairs when he flew past me and out of the door." (Daily Post)