Britain's Prince William joked his son will be a future rugby player during a speech last night.
The prince - accompanied by his wife Duchess Catherine - also joked the eight-month-old tot had been doing to haka, a traditional Maori dance which welcomed the royal family to New Zealand earlier this week, during one of his frequent nocturnal wakings.
Speaking at a state reception in their honour at Government House in Wellington, William said: "He's a bonny lad and you'll be pleased to know that he's currently preparing for life as a prop forward!
"[George is] at his most vocal at 3am, as you may have noticed. I swear I heard him doing the haka this morning.
"I hope that George doesn't keep you up!"
The 31-year-old prince went on to thank the country and its representatives for being so welcoming, and shared his joy of making the trip with his family.
He said: "Thank you also for hosting Catherine, George and me during our time in New Zealand.
"I cannot tell you how happy I am to be back here in God's Own Country - as I have learned to call it - and this time with my wife and son.
"On this visit, I have no doubt that it will be Catherine - and not just me - who falls for New Zealand."