"Sorry for busting your bills over here, but, uh… [Sniffles] sometimes I get sensitive, is all. Us pigeons, we got big hearts, too. Ain’t that right, guys?" Pugnacious, cynical and surly, Chump is openly hostile to the first person who dares to denigrate her or her species just as she hates it when people invade her territory. Choleric by nature, she is easily touchy and will raise her voice at insults and wrong words, just as she sometimes ironically confuses the pronunciation of her name with an insult. Initially, she looks down on ducks for always being pampered by humans. She can also be a bit dishonest when it comes to sharing, having initially demanded eighty percent of a sandwich instead of half. Beneath her nonchalant exterior, Chump turns out to be quite sensitive and not all that vile. She quickly took a liking to the Mallards after Pam stood up to her for sandwich shares, earning her respect and friendship while becoming incredibly good-natured towards the duck family. According to her, her anti-social behavior is just a mood swing due to the hypersensitivity of pigeons. She even comes to like Mack following his altercation with the chef, never imagining that one day she would think that from a duck. Her other personality traits include an excessive confidence that leads her to be recklessly hit by vehicles, a relaxed and cool attitude when she is at her most social, and being genuinely sensitive to compliments from others. In terms of interaction, Chump mainly expresses herself with colloquial nicknames whether unfriendly or friendly, such as when she warmly said goodbye to the Mallards by openly saying that she loves them.Chump is offended that her gang stoops to pecking at the pieces of bread that the old woman Dolores throws at them in the park, earning her a remark from Greg about her consumption of trash to which she tells him to shut up. However, Chump becomes emotional when Dolores gives her a large piece of bread which she happily eats while trying to hide the face from his gang. As the first snowflakes fall, Dolores returns home by bus but drops her gold pendant, of which only Chump notices the loss. The pigeon, always moved by the kindness of the human, decides to brave the falling snow just to tuck in her collar. Following the bus with her wings, Chump ends up hitting the windshield of a truck before hitting a trash can and loses the necklace which she tirelessly tries to retrieve between the legs of the humans before fighting over it with a German Shepherd. She then hits a billboard and the medallion falls under the subway rail, quickly forcing her to flee the subway coming towards her apparently not for the first time. The misadventure ends with Chump buried and freezing in the snow but she still manages to bring the medallion back to Dolores who, as a sign of gratitude, welcomes Chump into her home for the winter, offering her a donut to her great pleasure and welcoming the rest of the gang. "Oh, sweet mother of glaze! Okay now this is my kind of edible."