A British major general, on behalf of Norway's king, dropped the king's sword on both side of Nils' black-and-white frame. A badge symbolizing his knighthood was tied to the penguin's flipper.
Nils then reviewed the troops lined up outside the penguin enclosure at the zoo, waddling down the row of uniformed soldiers.
Nils Olav is actually the third penguin to serve as mascot of the Norwegian King's Guard.
He already has medals for good conduct and long service.
Now, thanks to knighthood, he'll be called "sir."