The mockingbird in Harper Lee's novel "To Kill a Mockingbird" symbolizes innocence, purity, and vulnerability. It serves as a metaphor for characters such as Tom Robinson and Boo Radley, who are innocent and harmless individuals that are unfairly targeted and harmed by others in the story. The mockingbird's significance lies in highlighting the theme of compassion, understanding, and the moral responsibility to protect those who are defenseless and unfairly treated in society.
