Daniel Brockway is a year 4 pupil at Maori Hill School, and was ‘‘excited’’ when Bairstow took a moment to sign his little bat.
"I guess it’s pretty special for him to meet some of his heroes," Daniel’s mother, Dr Rachel Wensley, added.
Daniel is a member of the Kaikorai Junior Cricket Club, and will be watching part of the fourth one-day game, between the Black Caps and England at the University Oval on Wednesday.
And, having a New Zealand-born mother and an English-born father, Ben Brockway, Daniel supports both New Zealand and England.
He also acquired signatures from England all-rounder Chris Woakes and coaching staff member Paul Collingwood.
The signatures were provided after the team had been welcomed to Dunedin by The King’s and Queen’s High Schools Maori performing arts group He Waka Kotuia and had walked through a guard of honour provided by about 10 members of the City of Dunedin Pipe Band.
Band acting lead drummer Brent Cooper said of the guard of honour: "It was good, the players were appreciative."
English players smiled, nodded and took photos with their phones as they walked through.
After the Black Caps arrived later, New Zealand coach Mike Hesson "came up and thanked us", Mr Cooper said.
The Maori performing arts group greeted both groups of visitors with stirring haka and waiata.
English squad members also applauded the greeting and some warmly thanked the group in person.
There were several autograph-signing chances for fans of both teams after the English squad flew in at 2.40pm and the Black Caps arrived about 6.30pm, the latter flight delayed by about an hour.