Answer:
He thinks it is a visitor.
Step-by-step explanation:
In this text by Edgar Allan Poe, of extreme poetic beauty and of harsh longing for a lost love, the speaker is pondering memories in a lonely and somber night, when, suddenly, he hears someone knocking at his door. His first reaction is to think that it is a visitor and nothing more. Eventually, we all know, he discovers it is the dreaded raven who comes to haunt him driving him to levels of desperation hardly ever better described.