The Family Guy where the endangered species of bird nested in Peter's bird was one of the funniest. Peter couldn't remove the bird under penalty of arrest. He went to the movies and while he was trying to eat popcorn, the bird would pop out of his beard and steal the popcorn out of Peter's hand each time he was putting it to his mouth. Then, the bird started talking (or, squawking) during the movie, disturbing the audience. When the audience started complaining, Peter stood up and explained to the audience in the most intelligent speech that I've heard him give, that "the bird has receded into my beard...."