She did so in reference to a 2015 feud over a quarantine breach involving two other dogs.
That year, she brought them to Queensland to visit her then husband Johnny Depp, who was filming one of the Pirates of the Caribbean films there.
The couple were given days to remove the dogs or they would be put down.
At the time, the incident provoked a war of words with Mr Joyce – then agriculture minister – who said the dogs should “bugger off back to the United States” or risk being put down.
Mr Depp fired back, referring to Mr Joyce as some kind of “sweaty, big-gutted man from Australia”.
On Sunday, the actress – who has since divorced Mr Depp – introduced the new dog in a tweet.
Meet the newest member of the Heard family, Barnaby Joyce! 🐶 pic.twitter.com/fFZkx0ckkt
— Amber Heard (@realamberheard) December 26, 2021
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