1: Hummingbirds have a life expectancy of 3-5 years.

2: The oldest known hummingbird lived 9 years.

3: Factors like climate, predators, and food supply affect life expectancy.

4: Female hummingbirds tend to live longer than males.

5: Hummingbirds have high metabolic rates due to their fast wing beats.

6: They can enter torpor to conserve energy during the night.

7: Migratory hummingbirds may face additional challenges.

8: Providing a safe habitat can help increase their life expectancy.

9: Conservation efforts are crucial to ensure hummingbirds thrive.