Here is a revised script based on your feedback:
It is a sunny morning and the ugly duckling wakes up feeling lonely. All of his brothers and sisters are yellow and happy together, but he feels different.
He looks at his reflection in the pond and sees that his feathers are white. He feels sad that he does not fit in.
The ugly duckling wanders into the forest, hoping to find others like him. He meets a goose but the goose says "you do not belong here because you are white like snow."
Feeling sadder, the ugly duckling keeps searching. He finds a rabbit but the rabbit also says "you are too big to be a rabbit."
The ugly duck