Explain the metaphor the poet uses to describe the sunset in an indian summer day on the prairie

The poet uses the metaphor of an old eagle to describe the sunset in the poem "An Indian Summer Day on the Prairie".

Explanation:

The poet considers the setting of the sun to signify the end of the day. As the poet describes in the poem "The sun is an eagle old; Atop of the spirit-cliffs", the sun is compared to an old eagle on top of a cliff, which is preparing for its death. The last line of the poem "He builds himself a crimson nest" is used to signify the color of the sun and the sky as the sun sets.

using the scientific method.

because the early people found out about it.