Blue Bill isn't like the other ducks around the pond; he has a blue bill, while all the other ducks around him do not. He knows what it feels like to be different and to have others reject you.
One day he sees two ducks with orange bills; they laugh at him because of his blue bill. Then he sees three pink worms who are all the same. As he sees more animals in various colors-green frogs, brown turtles, black ants, yellow butterflies, and gray...