1: 1. Hummingbirds hover in mid-air to feed on nectar from flowers.

2: 2. They can fly backwards, sideways, and even upside down with incredible agility.

3: 3. Male hummingbirds perform elaborate courtship displays to attract females.

4: 4. They are fiercely territorial and will defend their feeding and nesting areas.

5: 5. Hummingbirds have excellent memories and will return to the same feeding spots year after year.

6: 6. They can consume up to double their body weight in food each day to fuel their high metabolism.

7: 7. Hummingbirds are known to take "mini naps" throughout the day to conserve energy.

8: 8. Some species of hummingbirds migrate thousands of miles each year to reach their breeding grounds.

9: 9. Hummingbirds can see ultraviolet light, which helps them locate nectar-rich flowers.