How does Frost present nature in the poem? The following questions may help you to think of an answer:
What are the birds that are usually named in poems? Do you think a crow is often mentioned in poems? What images come to your mind when you think of a crow?

Explanation

The poet has depicted nature unusually. Generally, we come across birds such as nightingales or sparrows in poems concerned with nature and its beauty. No, crow is not often mentioned in the poems. The crow is considered as a harbinger of bad news and sadness. Frost has used a crow in this poem to indicate sorrow and foreboding.