It appears in his most famous poem, "The Raven," where it symbolizes loss, sorrow, and the relentless nature of grief. The Raven's haunting croak "Nevermore" echoes the speaker's despair over the loss of his love, Lenore.
While the Raven is the most prominent bird in Poe's works, he also uses other birds, like the albatross in "The Albatross," to symbolize themes of guilt, isolation, and the weight of sin.
However, the Raven remains the most enduring symbol of Poe's dark and brooding poetry.