Author's Purpose: The author's purpose in this passage is to inform and educate the reader about hummingbirds and their unique abilities.
Explanation: The passage provides factual information about the characteristics and behaviors of hummingbirds, including their ability to fly backwards, hover, and flap their wings in a specific motion. The use of phrases like "did you know" engages the reader's curiosity, while the detailed descriptions serve to enhance understanding and appreciation of these birds. Overall, the intent is to impart knowledge rather than persuade or entertain.