Will Ferrell Loses It When You Talk About His Bird

First rule of Will Ferrell's bird: You do not talk about Will Ferrell's bird!

The "Get Hard" star stopped by Conan O'Brien's show on Thursday, and things went south quickly after O'Brien brought up the cockatoo sitting on Ferrell's shoulder. The comedian then explained to O'Brien that he'd talk about the movie, but he didn't want to discuss his personal life. "There's no reason to bring Professor Feathers into any sort of conversation," said Ferrell, visibly shaken.

The rest of the segment then turned into Ferrell and Professor Feathers' worst nightmare. Talk about the bird dominated the conversation, and Feathers was furious. The comedian explained, "Now, he's agitated, and I'm gonna hear it on the whole ride home." Wow, way to go, Conan.

"Conan" airs weeknights at 11:00 p.m. ET on TBS.