Comedy of Feathers is the third part of 13th aired and 12th produced episode in season 4 of Dexter's Laboratory, which aired on November 20, 2003. It is the season finale and the last aired episode to air of Dexter's Laboratory. It is the 218th produced episode, followed by "Babe Sitter", "Mountain Mandark" and "2Geniuses 2Gether 4Ever" in Production order. In this episode, Dexter and Dee Dee go to the zoo, where Dee Dee tries to save an ostrich that ends up with the both of them switching places.
Mom and Dad make Dexter take Dee Dee to the zoo (Another day without going to his secret laboratory). Dee Dee is going crazy with joy for going to the zoo.
She goes nuts over every single animal there especially the ostrich. She wants to free the ostrich and bring it home. Later, Dee Dee and the ostrich switch places and Dee Dee stays at the zoo while Dexter goes home with the ostrich mistakenly, foreshadowing her next appearance.
Even though this is the final aired episode, "2Geniuses 2Gether 4Ever" was actually the final produced episode, similar to how What's the Big Idea?, Octi Gone, Destination Imagination and Goodbye to Bloo were the final produced/aired episodes of The Powerpuff Girls and Foster's Home for Imaginary Friends.
Though this episode aired as the Season 4 finale of this show, it is actually the third part of 77th produced episode of Season 4, creating a continuity error in the American broadcast.
It is rumored that Dee Dee has been rescued from the Zoo in the next produced episode "Babe Sitter", it was possibly because of the episodes being aired out of production order.
It was the last time when Dexter is not in his lab yet in this episode, even though Mandark starts to take over the show and made three of the episodes about him.