In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.
Q: Sentence1: Little Lucy loved birds and wanted to build a birdhouse. Sentence2: She and her dad went to buy the supplies needed to build one. Sentence3: They also bought birdseed to attract birds to the birdhouse. Sentence4: Many birds came to nest and eat at the birdhouse. Sentence5: Little Lucy was the happiest girl in town!
A:
Dad, Little lucy, Birds