He’s got a potty-beak.

An Upper West Side parrot ruffled some feathers last week when he flew the coop, prompting his owner to plaster $500 reward signs around the neighborhood, warning about the bird’s naughty penchant for saying the word “a–hole.”

The three-year-old Congo African Grey named Goo-Goo was hanging out on owner Connie I’s third-floor back porch on West 76th Street July 11 when he “just decided to take off,” she said.

“I didn’t put [Goo-Goo] on a chain because he doesn’t really fly, he glides. And when he glides, he doesn’t go very far…But before I knew it, he kind of glided over my balcony,” she said. 

Frantic to get back her beloved bird, Connie posted signs up and down the block. 

“Sounds out ‘Goo-Goo’…Another sound: ‘Baba A–hole,’ (My mother did that)” the flyer read. 

The polly picked up the cuss word from Connie’s parents who live in Queens. 

“‘Baba’ in Chinese means ‘dad,’ and my mom would call my dad ‘Baba A–hole.’ So [Goo-Goo] was really calling my dad an a–hole in Chinese…and I was like, ‘Thanks, Mom,’” she explained.

Luckily, Goo-Goo’s time loose in the Concrete Jungle was brief.

A housekeeper who works at a neighbor’s home discovered the wayward bird – and shielded him from a lunging pooch – and reunited him safely with his relieved owner. 

Goo-Goo, meanwhile, hasn’t cleaned up his act just yet.

In a video shared with The Post, the squawker defiantly repeats the curse word three times in a row while staring directly at the camera. 

“I am trying to get him to stop saying it,” Connie said.