Watch Rose Byrne Showcase Her Epic Kookaburra Call (Video)
The 'Tonight Show' guest also played Pictionary with LL Cool J and Big Sean.
Rose Byrne's boyfriend, Bobby Cannavale, is really not a fan of the kookaburra.
The Adult Beginners actress revealed the fun fact to Jimmy Fallon while appearing on The Tonight Show on Monday — complete with her epic imitation of the Australian animal.
Watch her bird call below, plus her impression of Cannavale's surprise at the native sound.
While on the show, she also played Pictionary with LL Cool J and Big Sean.