* AdaptationDisplacement: Very few people know that the 2004 cartoon was based on the 1988 animated short film of the same name, which ''[[RuleOfThree in turn]]'' [[RuleOfThree was based on]] the short animated film ''The Peep Show'' from 1962, which is also extremely obscure.
* DracoInLeatherPants: As mentioned below, Quack is well loved by the fandom, largely because he makes a lot of the shows funny moments by being a ditzy, self absorbed jerk. As a result of said humor, a lot of people gives him a pass for said jerkish/unsavory moments, particularly the part where his main schtick is vocally and sincerely [[FantasticRacism believing that his species (ducks) are superior]] [[DoesThisRemindYouOfAnything to all other species in every aspect]] and getting defensive/condescending when the other animals question this.
* EnsembleDarkHorse:
** People seem to really love Quack the duck, with good reasons. Even Joan Cusack (the narrator) says that he's her favorite character.
** Hoot the owl, for being a great example of DarkIsNotEvil.
* HilariousInHindsight: In "A Peep of a Different Color", Peep covers himself in red paint. Quack doesn't recognize him and calls him [[VideoGame/AmongUs a red imposter]].
* {{Moe}}: Peep and Chirp.
* OlderThanTheyThink: While this was the only TV show they had, Peep and his two friends as characters predate the show by several decades. They were first introduced in an animated short creator Kaj Pindal made in 1962 called "The Peep Show". The short was remade in 1988 with the same title as the TV series. In both incarnations the character designs are near identical to those of the TV series, though the former was in black and white.
* TheScrappy: Beaver Boy, for being obnoxious and TooDumbToLive.
* SeasonalRot: Seasons 4 and 5 are sometimes seen as this due to Amanda Soha using a much higher voice for Chirp, and Peep going through two cases of TheOtherDarrin.
* [[SugarWiki/HeReallyCanAct She Really Can Act]]: Amanda Soha really manages to convey poor Chirp's misery in part 2 "The Sounds of Silence".
* {{Squick}}: In one episode, Quack gets stuck in a hollow log and at one point, the other characters decide to try and make Quack slippery so that he can get out, and get some water from a nearby stream to do so. Rabbit finds a discarded can to fill with water and splash it on him. Chirp and Peep, on the other hand, drink until their mouths are full and ''spit it onto him.'' They were genuinely trying to help and Quack doesn't seem to care (he's ''far'' more bothered when Rabbit accidentally spills the entire can onto him all at once) but still, for the humans watching, ew.
* TheyChangedItNowItSucks: Chirp's voice being made higher-pitched in season 4 wasn't received well by some fans.
* TheyWastedAPerfectlyGoodPlot: "Chirp Flies The Coop" would have been a much better episode if Chirp had actually been able to fly in it, as it would have made her decision to stay with Peep and Quack entirely her own and not in part due to the fact that her inability to fly inconvenienced the robin.
* UnintentionallySympathetic: Chirp in "Sounds of Silence". While she could have more calmly dealt with Quack's interruptions and would have minimized her own suffering as well, Quack was being genuinely obnoxious and as the robin equivalent as a five year old girl, she can be forgiven for having trouble clearly communicating her issues to him. It doesn't help that the ultimate moral of the episode boils down to "Chirp needs Quack to carry her through puddles, so she should put up with him, warts and all." In other words, Quack gets to be annoying as he wants because Chirp needs him. In the end, it's a bit of a DownerEnding for poor Chirp.
** Quack's bossing around of [[ExtremeDoormat Peep]] (aside from the above example, Chirp rarely puts up with Quack) is something that occurs pretty regularly, perhaps a bit more so then some viewers are comfortable with. Peep, being passive and almost never aggressive, most often goes along with Quack's bossy requests, although sometimes when Quack goes too far with his bossiness, Peep will politely decline or suggest a different solution.
* UnintentionallyUnsympathetic: "Sounds of Silence" is a good example of BothSidesHaveAPoint: On one hand, Quack isn't trying to bother Chirp, and Chirp's irritation at him is expressed unconstructively, as she yells at him in response to Quack's disruptions. But on the other hand, we're shown how Quack acts in a genuinely disruptive manner: Thus, ideally Chirp would learn to explain to Quack what the problem is instead of just lashing out, and Quack would learn to be more self-aware of when he's bothering her. The problem is that only Quack's side of the argument is validated. ''Chirp'' is shown as in the wrong for simply ''liking'' the peace that comes as a result of Quack deciding not to speak until Chirp begs him to. And even ''Peep'' is only shown as feeling sorry for Quack-when Chirp lashes out at Quack in Part 2, it's him of all characters [[note]]Who is normally completely neutral in Chirp and Quack's arguments[[/note]] who tells her she hurt Quack's feelings, and nobody ever once acknowledges that Quack's behavior, unintentional and InnocentlyInsensitive as it may be, is equally hurtful in its own way.
** "Door Tour": Peep is having a perfectly nice morning. Quack runs up and plants the idea in his head that his can needs a door, then disappears for most of the rest of the episode to decorate his hat with the fish. Peep spends a great deal of timing running to and from trying to get a good door, and actually manages to get one. (A small lid with some mud as a hinge) Then Quack returns, gets ''very'' sad when he realizes that he can't see Peep through the door, and then convinces Peep that he doesn't need a door after all and then when Peep reminds him that the door was his idea, Quack declares that it wasn't what he ''meant''...dismantles the door, and the episode treats ''his hat looking ridiculous'' as the biggest issue.
* ViewerGenderConfusion: Chirp's a girl, but it's ''really'' hard to tell due to her somewhat [[TomboyishVoice deep voice]] and lack of TertiarySexualCharacteristics. Same goes for Peep the other way around.
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