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The video begins with a brief introduction to hummingbirds, followed by a demonstration by Alex, who shows something related to hummingbirds.

What is the main topic introduced in the first section of the video?

• The anatomy of hummingbirds

• The lifespan of hummingbirds

• The feeding habits of hummingbirds

• The migration patterns of birds

What does Alex demonstrate in the second section?

• How to measure the speed of a hummingbird

• How to attract hummingbirds to your garden

• How to calculate the energy consumption of a hummingbird

• How to identify different bird species

Which of the following is NOT discussed in the video?

• Hummingbird migration

• Hummingbird feeding

• Hummingbird lifespan

• Hummingbird speed

What is the purpose of Alex's demonstration?

• To demonstrate the speed of hummingbirds

• To show the beauty of hummingbirds

• To explain the mechanics of hummingbird flight

• To teach how to care for hummingbirds

Which section of the video focuses on a practical demonstration?

• Alex's Demonstration

• Both sections

• Introduction to Hummingbirds

• Neither section