Robert Irwin shares heartwarming birthday tribute to sister Bindi

Robert Irwin shared a heartwarming birthday tribute to his sister Bindi on her 22nd birthday on Friday.

The 16-year-old shared a sweet photo showing his big sister beside him on the day he was born, while alongside them was their late father Steve.

Steve tragically died on September 4, 2006, after a stingray attack at Batt Reef near Port Douglas, Queensland. He was 44. 

Sweet! Robert Irwin revealed the hilarious nickname Bindi gave him when he was born as he pays tribute to his sister on her birthday with a sweet photo of them and their late father Steve. Pictured together is Bindi with newborn brother Robert and their father Steve 

The Wildlife Warrior wished his sister happy birthday, and added: ‘Thank you for being my best friend from the moment I entered the world.’

‘I’ll always treasure the story of the first time you met me – it was around the time this photo was taken, just after I was born and you decided that it was your job to name me… and then promptly named me Brian,’ he shared.

Robert continued: ‘Dad then confirmed that my name was actually Robert, but you still called me Brian “for short!” 

He finished his message: ‘Can’t wait to celebrate today, I am so proud to be your brother! Love, Brian.’

Cute: He also shared a sweet story: 'Just after I was born and you decided that it was your job to name me and then promptly named me Brian. Dad then confirmed that my name was actually Robert, but you still called me Brian "for short".' Robert, Bindi and pictured their mother Terri

Cute: He also shared a sweet story: ‘Just after I was born and you decided that it was your job to name me and then promptly named me Brian. Dad then confirmed that my name was actually Robert, but you still called me Brian “for short”.’ Robert, Bindi and pictured their mother Terri

'Beyond blessed to be your sister': The birthday girl was quick to reply back, saying: 'Love you so much, Brian! Thank you for being the greatest friend and brother.' Robert pictured walking with Bindi on her wedding day

‘Beyond blessed to be your sister’: The birthday girl was quick to reply back, saying: ‘Love you so much, Brian! Thank you for being the greatest friend and brother.’ Robert pictured walking with Bindi on her wedding day 

The birthday girl, who was walked down aisle by Robert, was quick to reply back, saying: ‘Love you so much, Brian! Thank you for being the greatest friend and brother.

‘Beyond blessed to be your sister,’ she added. 

Bindi’s husband Chandler Powell also shared a special tribute on her special day – which is the same day he proposed to her last year. 

The former professional wakeboarder shared several photos from their wedding day on March 25. 

Special occasion: Bindi's husband Chandler Powell also shared a special tribute on her special day - which is the same day he proposed to her last year

Special occasion: Bindi’s husband Chandler Powell also shared a special tribute on her special day – which is the same day he proposed to her last year

He wrote in the caption: ‘For the first time ever as a married couple, happy birthday to my beautiful wife.’

The 23-year-old Florida native added: ‘This year has been nothing short of epic and you have handled everything thrown our way with courage and grace.

‘You inspire me to be a better person every day with how much love you have to give.’

Wedded bliss: The former professional wakeboarder shared several photos from their wedding day on March 25 and wrote in the caption: 'For the first time ever as a married couple, happy birthday to my beautiful wife'. The couple pictured on their wedding day

Wedded bliss: The former professional wakeboarder shared several photos from their wedding day on March 25 and wrote in the caption: ‘For the first time ever as a married couple, happy birthday to my beautiful wife’. The couple pictured on their wedding day

Loved up: Bindi was quick to respond to her husband's message, commenting below the post: 'My sunshine, my world. I love you today, tomorrow and forever'. The couple pictured on their engagement day

Loved up: Bindi was quick to respond to her husband’s message, commenting below the post: ‘My sunshine, my world. I love you today, tomorrow and forever’. The couple pictured on their engagement day

‘Thank you for making the world a better and brighter place. My best friend, my wife, my everything. I love you.’

Bindi was quick to respond to her husband’s message, commenting below the post: ‘My sunshine, my world. I love you today, tomorrow and forever.’ 

Bindi’s birthday tributes comes after a tough few months for the Irwins and their beloved Australia Zoo as a result of the coronavirus pandemic.

Economic downturn: Bindi birthday tribute comes after a tough few months for the Irwins and their beloved Australia Zoo as a result of the coronavirus pandemic

Economic downturn: Bindi birthday tribute comes after a tough few months for the Irwins and their beloved Australia Zoo as a result of the coronavirus pandemic 

A trailer for the new season of Crikey! It’s the Irwins shows the family and their staff struggling to keep the business afloat during lockdown.

Matriarch Terri Irwin reveals the tourist attraction is bleeding $400,000 per week on wages, plus $78,914 on food for the animals.

She has to make the tough decision to cut jobs and operate with a skeleton crew of employees as the family members take on more work.

Crikey! It’s the Irwins: Live in Lockdown will air in Australia on Saturday, August 1 at 7:30pm on Animal Planet

Survival mode: A trailer for the new season of Crikey! It's the Irwins shows the family and their staff struggling to keep the business afloat during lockdown

Survival mode: A trailer for the new season of Crikey! It’s the Irwins shows the family and their staff struggling to keep the business afloat during lockdown