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I heard a humming, buzzing sound,
What is a hummingbird?
Hummingbirds are the smallest of all birds.
The smallest bird on Earth is the Bee Hummingbird which is only 2 inches (5 cm) long.
Hummingbirds 'hum' when they fly because of the speed at which they flap their wings- up to 80 times/second.
Hummingbirds are the only birds that can fly backwards and hover in air.
Like bees, hummingbirds drink nectar from flowers, and because they use so much energy to fly, they must drink more than their own body weight in nectar each day.
Hummingbirds only live in North and South America.