Ducky (a.k.a. Devoted Ducky, as she is called in her bio on the official site, and referred to as by fans), is the tritagonist of the Land Before Time Franchise. She is a happy-go-lucky, optimistic Saurolophus. She was originally voiced by the late Judith Barsi (who favored this role, but didn't live to see the movie any more than to see the movie with her other animated role), later by Heather Hogan, who was voicing Kokoro from Dead or Alive and finally Aria Noelle Curzon, is one of the original five main characters in the Land Before Time films and television series, and one of only three characters to appear in every movie and episode of the TV series. She is one of many creatures called a "swimmer", and is also called a "big mouth", or a "duck-bill" by the characters in the films. She is the tritagonist of the first film, one of the main protagonists of the second, third, fourth, fifth, sixth, seventh, ninth, thirteenth, and fourteenth films, the main protagonist of the eighth film, a secondary character in the tenth and twelfth films, and one of the three hidden main antagonists of the eleventh film. She is the original cutest member of the team, later the keenest (starting with the TV series).
Ducky is very extroverted and positive, and is loving to her friends and family. She lives with her mother and father, multiple biological siblings, and an adopted Stegosaurus (which is referred to as a "Spiketail" in the series) named Spike, who is also a main character in the series. Together, they are companions with the other main characters, Littlefoot, Cera, Petrie, Chomper, and Ruby. In most cases, Ducky is listed after Littlefoot and Cera, and before Petrie and Spike, Chomper, and Ruby, but sometimes Spike is listed after Cera and before Ducky.
She first hatched from an egg just like all her sisters. In her fourth film, she befriends a furry friend whom she names Tickles when Littlefoot goes on a mission to find the Golden Night Flower to heal his grandpa.
Ducky's reaction at Cera's dad who has completely lost his mind speaking rudely about Littlefoot.
Ducky's close encounter.
Ducky's species has been disputed by fans and critics to be one of such species as Saurolophus, Anatosaurus, and Parasaurolophus, although she has been called a Parasaurolophus in most official media, and a Saurolophus in very few.