Bindi Irwin's Daughter Grace Rings in Her 4th Birthday with Celebration at the Australia Zoo Featuring All Her Animal Friends

Bindi Irwin is celebrating her daughter's 4th birthday!

On Tuesday, March 25, the Australian conservationist and zookeeper, 26, shared pictures from her daughter Grace's 4th birthday celebration at the Australia Zoo in a joint Instagram post with her husband Chandler Powell, 28. Irwin shared a series of snaps, alternating between photos of the family of three, individual shots of the 4-year-old and an image of the mother-daughter duo.

"March 25❤️ Celebrating 5 years of marriage and our beautiful daughter’s 4th birthday. I still can’t believe Grace was born on our anniversary," the proud mom wrote. "Thankful every minute for this incredible family of mine. How did I get so lucky?"

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The proud parents also shared a video filled with "the sweetest Grace moments," including her picking up Easter eggs with bunny ears on and the 4-year-old interacting with a turtle.

"G'day everybody! Today is a really exciting day because it is your 4th birthday," Irwin began the video, before Grace interrupted saying, "No, it's my 16th birthday." Irwin laughed off the comment, replying, "Oh, it's your 16th birthday? Are you 16? Already? Wow, so they really are right, you just blink your eyes and suddenly your 3-year-old is 16. Happy 16th birthday."

"Okay, so my 4 slash 16-year-old daughter has now run off to go play with Chandler and Uncle Robert," she continued later in the video. "But, I wanted to take a moment, Grace, if you ever look back on this video, I want you to know that you are the most beautiful, kind, thoughtful, smart, amazing person. And I love you with all my heart and Chandler does too. You are the best part of our lives, our whole family. We just feel so lucky that you chose us."

Irwin also shared a gallery of photos from Grace's celebration at the Australia Zoo, which featured Grace hanging out with some Bluey characters as well as some other zoo animals.

Powell wrote a special tribute to his daughter in the caption of the video, saying, "4 years! Happy Birthday to my best buddy in the whole wide world. If these first four years are a glimpse of the life ahead of you, I can’t wait for what the future holds. I love you and being your dad is what I’m most proud of."

Her Uncle Robert echoed Irwin and Powell's sentiments, sharing a post of his own on Instagram. He shared several snaps of the two of them throughout the past few years, ending with two photos of him holding Grace in his arms – one when she was a baby and the other as a toddler.

"I can’t believe my little niece is 4!!!" he wrote in the caption. "Happy birthday Grace, I’m so lucky to be your uncle ☺️"

Irwin expressed her family's love for Robert in the comment section, simply writing, "We love you!"