The National Poultry Show is being held, and Daffy Duck looks at the matinee showing the prizes for the judging. The first prize for best rooster is $5000, and the best duck is $5. Daffy is not happy about this, and decides to disguise himself as a rooster (using rubber gloves and the tail feathers of another rooster) to get $5000. Meanwhile, Henery is being taught all about roosters by his father. Henery decides to head to the poultry show and catch himself a rooster.
Daffy's plan backfires when Henery decides to take him home. Daffy says he's a special breed of rooster, and thinking that Henery's father is the judge to give him the $5000, he tags along. Daffy then finds out he is in a chickenhawk's house, and tries to escape, but fails. Henery's father then starts to prepare Daffy as a meal. Daffy tries to prove he is really a duck, even trying to take his disguise off (to no avail). When he tries to escape, Henery's father grabs his "head" (the rubber glove), and the glove lands on his head, then he proceeds to chase Daffy, who is finally able to escape but Henery accidentally hits his father with a mallet.
Before the contest begins, Daffy puts on another glove. Then, at the contest, Daffy loses to Henery's father, disguised as a Rhode Island red rooster. Daffy then tries for the best duck prize, but loses that as well - to Henery, wearing a disguise consisting of a clothespin and two flippers.
When this short was featured on CBS' The Bugs Bunny/Road Runner Show, the following parts were cut out/edited:
The part where Daffy runs for the door after realizing that Henery Hawk and his father are going to eat him was missing the part where Henery Hawk closes the door on Daffy and Daffy slams face-first into the door (the part afterwards where Daffy's beak can be seen from outside as he cries, "Help!", gets pulled back in, and is seen again when Daffy says, "I distinctly said, 'Help!'" wasn't edited).
The part where George K. Chickenhawk chases Daffy in circles in one door and out of another and Henery accidentally hits George instead of Daffy was replaced with a shot of Daffy looking off-screen, but the shot of George on the floor with stars coming out of his head was not cut.
This cartoon was supposed to be in the pre-1948 cartoon package due to production numbers, being before Haredevil Hare, but since the cartoon was released after July of 1948, the cartoon somehow remained in the hands of Warner Bros.
In the 1954-55 season, the cartoon was given a Blue Ribbon reissue - the first post-1948 cartoon to get one. This was only one of five post-1948 WB cartoons to get a Blue Ribbon reissue prior to 1956 - with the original credits cut. The others were "Daffy Dilly", "The Foghorn Leghorn", "Kit for Cat", and "Scaredy Cat". "You Were Never Duckier" is the only one of these not to have been reissued in the 1955-56 season. The original opening and credits have since been restored for its DVD release.
Henery closes the door on Daffy (a scene once edited on CBS)