Baby Bob Irwin celebrates 13th birthday

Young Robert Irwin, the son of late Crocodile Hunter Steve, is officially a teenager.

Robert spent his thirteenth birthday on Friday feeding crocs and performing at his family's wildlife park, Australia Zoo, along with his sister Bindi and mother Terri.

A special display has been set up at the Sunshine Coast park featuring photos taken by Robert, with the budding photographer a runner-up for Australian Geographic's Young Photographer of the Year competition earlier this year.

And the boy better known as Baby Bob, who was only two when his father died in 2006, has also set up an Instagram account to showcase more of his images into the future.

"I love photography and have been lucky enough to take pictures of wildlife around the world, so to share that with everyone is really special," he said.