19 interesting things about hummingbirds, the only flying bird on Earth

Hummingbirds, a strange species of birds, hold many records in the bird world like the fastest flying speed, the only bird that can fly back, the smallest bird. Here are 19 interesting things about hummingbirds, inviting you to explore.

1. Hummingbirds are the only birds that can fly backwards because their wings can freely move in the direction of their shoulders. This special structure also allows the hummingbirds to stand still and hold the bird's head in place.

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2. Hummingbirds are famous for their ability to flap their wings extremely fast with a frequency of 70-80 times / second.

3. With a length of about 8cm, weighing from 2 - 20gram, hummingbirds are the smallest birds on Earth.

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4. According to hummingbird experts, the tiny bird has very good vision so that it can see food about 1.3 miles away.

5. The hummingbird nest is very small, about the size of an English walnut.

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6. Hummingbirds have about 400 species, living mainly in the tropics, near the equator.

7. Hummingbird's brain is only the size of a grain of rice but they have an excellent memory when they are looking for food. Hummingbirds can remember which flower they used to smoke nectar and the time it takes for a flower to replicate nectar.

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8. The red-fly hummingbird is about 7-9 cm long, weighs about 2.83 grams and can migrate over 600 miles (about 965km).

9. Only male red throat hummingbirds have red throat. When mature, male red throat hummingbirds are smaller in size than females.

10. The female hummingbird does everything without help from the male, from building nests, laying eggs to taking care of the young.

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11. The Cuban bee hummingbird is the smallest of the hummingbird family, about the size of a bee.

12. During the migration season, hummingbirds can fly through the Gulf of Mexico to find new food sources.

13. Hummingbirds are less feathery than other birds, an average hummingbird has about 900 feathers.

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14. Hummingbirds eat nectar and they like brightly colored tubular flowers like honeysuckle, fairy hair, bunch of chili peppers, lip flowers, convolvulus . Hummingbirds suck nectar from 5 to 8 times each time, each 30 to 60 seconds.

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15. Hummingbirds have a long tongue that splits in half at the head to help them attract nectar from the inside of the flowers.

16. In addition to nectar, hummingbirds also like to eat molluscs.

17. The normal flight rate for hummingbirds is 20 miles per hour (more than 30 km / h). When diving from a height of 30 meters to impress the female, the male hummingbird can reach speeds of 92.8km / h.

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18. Hummingbird's heartbeat can be pushed up to 1200 beats per minute, and their breathing rate is 250 beats per minute.

19. Hummingbirds can be active in the rain, so if you're lucky you can watch the hummingbirds fly in the rain.