From Nookipedia, the Animal Crossing wiki
Pelicans are a species of special bird characters in the Animal Crossing series, all of whom work at the Post Office.
- When the player first meets Tortimer in City Folk, he asks the player what their favorite character so far is. He mentions the only four characters that the players are supposed to meet so far: Cat (Rover), Turtle (Tortimer), Raccoon (Tom Nook), and Pelican (Pelly or Phyllis). If the player says pelican, Pelly/Phyllis will look surprised.