Final answer:
In "The Raven," the bird announces its presence by saying 'Nevermore.' The word 'Nevermore' is repeated throughout the poem, creating a sense of foreboding and reinforcing the theme of loss and despair.
Step-by-step explanation:
The bird in "The Raven" announces his presence to the narrator of the poem by calmly saying, 'Nevermore.' In the poem, the narrator is visited by a raven who perches on a bust of Pallas (a symbol of wisdom). The raven responds to the narrator's questions and statements with one word: 'Nevermore.' The repetition of this word creates a sense of foreboding and reinforces the theme of loss and despair in the poem.