Barbara Smith, acting chief executive for the Royal Zoological Society of Scotland, said: "We are honoured to host His Majesty the King of Norway's Guard as they bestow a prestigious new title upon our king penguin, Sir Nils Olav.

"It is a very proud moment and represents the close collaboration between our two countries, Scotland and Norway."

During the ceremony, Sir Nils paraded along the zoo's penguin walk, while inspecting the soldiers of the guard.