Bill Crystal and Jimmy Fallon star in "Schmuck Dynasty." Photo: Hulu/NBC.

Actor and comedian Billy Crystal is crying fowl–err foul — and he has the tape to prove it.

Appearing on Jimmy Fallon’s “Late Late Show” Tuesday night, Crystal took issue with the popular A&E reality series “Duck Dynasty,” which follows the eccentric goings-on of the Robertson family, who have become enriched by their duck hunting merchandise company.

Saying that the show was a rip-off of his own family’s series from several years ago, he offered video evidence of his accusation.

Of course, it was all a joke. The video showed Crystal and Fallon dressed as orthodox Jews, replete with beards as impressive as those sported by the Robertson clan, sitting on a park bench, blurting out “schmuck” at passersby. The faux-series, titled “Schmuck Dynasty” even features Fallon mimicking a duck call while saying the word “schmuck.”

Watch a video of the episode below:

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