Wilbur is a dodo with blue feathers. He has a large yellow beak, with a brown tip. Wilbur's outfit consists of a pilot's uniform. He has a white shirt with a red tie. Also, he wears a black belt, with a small pouch attached to it. Unlike his brother  , Wilbur wears large aviator sunglasses. He wears a headset to communicate with Orville.
In New Horizons
Wilbur is a pilot for Dodo Airlines in New Horizons, taking the player on island tours and to visit other towns via the Airport. He often speaks in an apparently incomprehensible jargon related to pilots, including the common phrase "Roger!" This includes referring to the player as "bellbottom bebop", "bellbottom folk", and "trainwreck blueberry pie" and himself as "stovetop rubber band", "stovetop saltshaker", and "tango boxing is go". He will ask the player if they "wanna bust bunson burners and bounce back to [Fruittown] (e.g. Orangetown)?" or "punt pontoons and fly Soaring Lily here back to [Town]" amongst other colloquialism. He also uses the NATO Phonetic Alphabet with modifications to keep the game family-friendly, changing the word for "W" from Whiskey to Whisker. Upon arrival at an island he says, "Alright, we are two down and docked at the target island. Delta Oscar Delta Oscar is go." And when leaving the island, saying "Roger! Lifting off November Oscar Whisker." He maintains a very militaristic and precise relationship with Orville, the ground control to ensure all flights run smoothly. Upon arrival at a deserted island, Wilbur will sell the player certain tools for Nook Miles.
Wilbur's Japanese name, ロドリー Rodrī, is a shortening of ロドリゲス, Rodrigues, which is the island where a relative of the Dodo, the Rodrigues Solitaire, was formerly found. Orville's name is a shortening of Mauritius, which is where Dodos were formerly found.
In Japanese, the Rodrigues Solitaire is named ロドリゲスドードー Rodrigues Dodo, which explains why Wilbur is named as such.
Wilbur's birthdate, December 17, is the date in 1903 that the Wright Brothers conducted the first ever flight of a heavier-than-air aircraft, the Wright Flyer.
Wilbur refers to his plane as "Soaring [Flower]," where the flower is any that appear in the game, and changes every visit to an mystery tour island.
While not visible to players in normal circumstances, Wilbur borrows placeholder dialog from Lazy villagers if the game is hacked or manipulated to talk to him where he's standing offscreen while visiting a friend's island. He will say: "Are you the one visiting from [Town name]? You're [Player], yeah? I knew it! When I first saw you, I said, 'I...don't know that person.' I thought you were maybe a spy or something... But what would you be spying on? I didn't know! THEN I remembered hearing we have a visitor who is definitely NOT a spy! Anyway, I'm Wilbur! Welcome to [Town name]! Enjoy your non-spying stay!" If the same is attempted on the player's own island, he'll say nothing and a blank speech bubble will appear.
If you talk to Wilbur in the middle of being chased by wasps, he will not show any reaction.
Wilbur has the voice of a Cranky villager, except it is a little bit deeper.