Answer:
This simile creates an image of freedom in the reader's mind.
Explanation:
The image that is created in the reader's mind refers to what the reader imagines when reading these lines.
These words give an image of freedom. These people from Africa who wanted to fly like birds, to be free. But they were captured by slavery, and as the author of the text says, these people "forgot to fly."
If we look at a more extended quote we will see the following words:
"Say that long ago in Africa, some of the people knew magic. And they would walk up on the air like climbin 'up on a gate. And they flew like blackbirds over the fields. Black, shiny wings flappin' against the blue up there. "
Here it can be interpreted how these people believe in magic, and in flying, and in being free.