Hummingbirds are very small and can hover in the air by flapping their wings quickly, about 15 to 80 times per second. Its speed depends on the size of the hummingbird. Hummingbirds are named after the hum of flapping wings.
Hummingbird is the only bird that can fly backwards. Hummingbirds can also hover in the air and fly left and right.
Hummingbirds are the smallest warm-blooded animals in the world. Hummingbirds like flowering plants (especially red flowers), including shrimp flowers, which are upside down (also called Zhong Hua, Zhong Haitang and Deng Haitang).
Fishing for plants like bells and willows. Hummingbirds feed on the nectar of these plants.
They are also important pollinators, especially those with long sleeves. Most hummingbirds also feed on insects.
In order to adapt to the rapid flapping of wings, hummingbirds have the fastest metabolism of all animals. Their heart rate can reach 500 beats per minute! Hummingbirds consume far more food than their own weight every day. In order to get a lot of food, they must eat hundreds of flowers every day.
Sometimes hummingbirds have to endure hunger for hours. In order to adapt to this situation, they can slow down their metabolism at night or when food is not easy to get.
Entering a state similar to hibernation is called "hibernation". During hibernation, the heart rate and respiratory rate will slow down to reduce the demand for food. Breeding is carried out by females alone. Hummingbirds' nests are cup-shaped fabrics, which are usually hung on branches, caves, rock surfaces or large leaves.
Hummingbirds lay two very small white eggs at a time. The incubation period of eggs is usually 15- 19 days.
In breeding, the female completes the tasks of nesting, incubating eggs and feeding young birds alone. Each nest lays 2 eggs (occasionally 3-4 eggs).
Eggs are round and white. The interval between two eggs is 48 hours.
The weight of an egg is l3 that of a female bird. The incubation period is 14~23 days.
Hummingbirds' nests are mostly small cup-shaped fiber cells hanging on horizontal branches; Some build nests in caves, others weave nests and hang them on the surface of rocks or large leaves (leaves of palm or tree fern) with spider silk. Hummingbird's cup-shaped nest, with deep cup and thick wall, is interwoven with moss and plant fibers, which is beneficial to keep the hatching temperature of eggs and keep the chicks warm.
When feeding chicks, females hover, put their mouths down their throats and pour out nectar or small insects. The feeding time is 20-40 days.
Hummingbirds' nests can be used for a long time. You can have 2 litters a year, and it is very rare to have 3 litters a year.
Female birds reach sexual maturity after one year, and male birds can courtship and sing after living independently for several months.
2. Hummingbirds write 500 words: * * There are 355 species, belonging to 2 subfamilies 104 genera. Named after the buzzing of wings when flying, it looks like a bee. Small size, scaly feathers, bright colors, and shining rainbow or metallic luster, male birds are more bright; The mouth is slender and straight, some bend downward, and some bend upward; The tongue stretches freely; Wings are long and narrow; Tail tip, fork or racket shape; Short feet and small and weak toes.
When flying, the wings flap rapidly, which is fast, powerful and lasting; The frequency can reach more than 50 times per second. He is good at hanging around in the flowers for a long time and sometimes flying backwards. It is closely related to Swift. Hummingbirds, like other birds, have no developed olfactory system and mainly rely on vision. About 90% hummingbirds feed on nectar, and the rest are arthropods, including flies, wasps, spiders, beetles and ants. Their slender beaks are perfect for sucking nectar.
Distributed in Latin America, North and South America, the east coast of the Pacific Ocean to Alaska.
There are many kinds of hummingbirds, about 300 species, with dozens of colors such as black, green and yellow, which are very bright, so they are called "God Birds", "Comets", "Forest Goddess" and "Corolla".
Do you know what the smallest bird is? Yes, it is a hummingbird. Hummingbird is the smallest bird in the world, about the size of a bee, with a body length of only 5 cm and a weight of only about 2 g, mainly distributed in forest areas of South America and Central America. Because it can make a buzzing sound when flying to collect honey, it is called hummingbird.
There are many kinds of hummingbirds, about 300 species, with dozens of colors such as black, green and yellow, which are very bright, so they are called "God Birds", "Comets", "Forest Goddess" and "Corolla".
Hummingbirds are petite, gorgeous in feathers and have extraordinary flying skills. Its wings are very flexible, vibrating 50-70 times per second, flying very fast, with a speed of 50 kilometers per hour and a height of four or five kilometers. People often only hear its voice and can't see its figure clearly. Surprisingly, the heartbeat of the hummingbird reaches 6 15 times per minute. It can not only fly fast, but also fly far. There is a red-breasted hummingbird that flies over the turbulent Gulf of Mexico twice a year, flying more than 800 kilometers nonstop.
Hummingbirds go out for food in the season of blooming flowers and lush vegetation, and live on nectar and small insects. It has a needle-like beak and a slender tongue that can stretch freely. When collecting nectar, it first separates stamens with a long beak and sucks the sweet nectar. It often pollinates camellia, Fritillaria, upside-down golden bell and other plants, and is a hardworking person in nature.
Hummingbirds nest on branches. These nests are unique in shape and fine in workmanship. They are made of silk and look like delicate wine glasses hanging from branches. Female hummingbirds lay one or two eggs at a time, only the size of beans, each weighing only 0.5 grams, and about 200 hummingbird eggs have an independent wild life of ordinary eggs.
Hummingbird is also the national bird of Trinidad and Tobago in Central America, symbolizing the kind and hardworking spirit of the local people.
4. How to write at the end of the composition about hummingbirds? On Saturday, I went to my great-grandmother's house in the suburbs to play. I saw a lovely hummingbird when I was pulling vegetables in the field.
Everyone is curious, why do you see the footprints of hummingbirds here? Isn't it only in the tropics?
We quickly checked the information on the Internet, only to know that this is not a real hummingbird, its name is "fake hummingbird". It turned out that it didn't want to be eaten by big birds, so it disguised itself as a hummingbird. Really smart.
I want to take it home, but I don't know what to feed it. So we should let it return to nature and continue to live a free life. Maybe so, we will have a chance to see fake hummingbirds often!
Next time I see it, I must take it with my camera and never hurt it. How lucky you are to see a fake hummingbird!
5. A composition describing the shape of hummingbirds is 500 words. I am the smallest bird in the world. Hummingbird? Yes, I am a hummingbird. I am also called "God Bird", "Comet", "Goddess of Forest" and "Corolla" by human beings.
The earliest ancestors of our hummingbirds lived more than 30 million years earlier than now. And we are called hummingbirds because we are about the same age as bees and look a bit like bees. We all make a living by collecting honey!
Although similar to bees, we also have differences. Bees are generally yellow-brown, while our hummingbirds are colored, such as blue-green, purple, red, yellow and so on. Our mouths are thin, long and sharp, our tongues are like needles, our wings are a little transparent and triangular, and our tail feathers are very long.
Although we are young, we are experts in flying. We can use it freely, up and down, left and right, and stop in mid-air like a helicopter. And that's how we hang it when we collect honey and catch insects.
Although I am the smallest bird, with a body length of only six centimeters and a weight of about four grams, there are more than 600 kinds of hummingbirds. I remember that I have a companion named "Giant Hummingbird", which is 2 1 cm long and certainly not the smallest bird in the world.
Our wings flap very fast, and our metabolism is the fastest of all animals. The heartbeat is at least more than 200 beats per minute and at most 1200 beats. It's amazing.
There are many things about our hummingbirds. If you are interested, you can come to Canada, Tierra del Fuego, South America and other places where we are distributed to get to know us more comprehensively.
6. Write about the composition of the hummingbird. I am the smallest bird in the world, hummingbird? Yes, I am a hummingbird. I am also called "God Bird", "Comet", "Goddess of Forest" and "Corolla" by human beings.
Our earliest hummingbird ancestors lived more than 30 million years earlier than now. We are called hummingbirds because we are about the same age as bees, look a bit like bees, and we all collect honey for a living!
Although similar to bees, we are also different. Bees are generally yellow-brown, while our hummingbirds are colorful, such as blue-green, purple, red and yellow. Our mouths are thin, long and sharp, our tongues are like needles, our wings are a little transparent and triangular, and our tail feathers are very long.
Although we are young, we are experts in flying. We can use it freely, up and down, left and right, and stop in mid-air like a helicopter. And that's how we hang it when we collect honey and catch insects.
Although I am the smallest bird, with a body length of only six centimeters and a weight of about four grams, there are more than 600 kinds of hummingbirds. I remember that I have a companion named "Giant Hummingbird", which is 2 1 cm long and certainly not the smallest bird in the world.
Our wings flap very fast, and our metabolism is the fastest of all animals. The heartbeat is at least 200 beats per minute and at most 1200 beats. Isn't it amazing?
There are many things about our hummingbirds. If you are interested, you can come to Canada, Tierra del Fuego, South America and other places where we are distributed to get to know us more comprehensively.
Description of Hummingbird Hummingbird is the smallest bird in the world. Their bodies are no more than 7 cm, their weight is only 1 ~ 2 grams, and there are only more than 900 feathers.
The flashing green hummingbird is about 5.8 cm long, smaller than a fly and not as thick as a bumblebee. Among them, the slender mouth and tail account for 4 cm, weighing only 2 grams, and its egg weighs 0.2 grams, which is similar to peas and is the smallest egg among birds.
Hummingbirds are too small to be preserved as fossils, and their evolutionary history remains a mystery. Most hummingbirds now live in Central and South America, and the hummingbird fossils 1 10,000 years ago were found in South America, so scientists believe that hummingbirds originated in the Pleistocene.
However, in southern Germany, scientists discovered the oldest hummingbird fossil in the world, which has a history of more than 30 million years. So the ancestors of hummingbirds appeared as early as Oligocene. The tail of a male hummingbird is the most unique among birds. It has only four feathers, two in the middle are spike-shaped, two long feathers extend to both sides, and the top bulges like a small "round fan", which is very beautiful.
From Mexico to Argentina, there is a flashing green hummingbird, which is the smallest hummingbird. Its feathers are green, and only its tail feathers are purple and blue. Its beak is a fine needle and its tongue is a thin thread; Its eyes are like two flashing black spots; The feathers on its wings are very thin and seem to be transparent; Its feet are short and small, and it is not easy to be noticed; It is rarely used enough and only stops at night; It keeps flying, fast and buzzing.
Its wings flap very fast, so when it stays in the air, it not only keeps its shape unchanged, but also looks motionless and hovers like a helicopter. Hummingbirds like flowering plants (especially red flowers), including shrimp flowers, flowers hanging upside down (also called bell flowers) and plants catching bells and willows.
Hummingbirds feed on the nectar of these plants. They are also important pollinators, especially those with long tubes.
Most hummingbirds also feed on insects. It will stop for a minute in front of a flower, and then fly to another flower like an arrow.
It sticks its slender tongue into their arms and sucks their nectar. The average life expectancy of hummingbirds is 3-4 years.
Under artificial propagation, the life span of hummingbirds can reach 10 years, while the life span of blue-breasted hummingbirds recorded in the field is only 7 years.
8. Composition of Hummingbird Material The nymph is the collective name of about 320 species of hummingbirds in Swift, and it is the smallest bird known in the world.
Hummingbirds are small and can hover in the air by flapping their wings quickly (15 to 80 times per second, depending on the size of hummingbirds). Hummingbirds are named after the hum of flapping wings.
Hummingbird is the only bird that can fly backwards. Hummingbirds can also hover in the air and fly left and right.
Hummingbirds have bright colors and are often included in Hummingbirds or Hummingbirds with Swifts. Distribution is limited to the western hemisphere, and there are many species in South America.
About 12 species are often found in the United States and Canada, and only in Nova Scotia to Florida in eastern North America is Archilochus colubris. The northernmost species is Sargassum, which breeds from southeastern Alaska to northern California.
Hummingbirds are all small birds, some of which are very small. Patagona gigas, the largest hummingbird in western South America, is only 20 centimeters (8 inches) long and weighs about 20 grams (0.67 ounces).
The smallest hummingbird (Mellisuga helenae or Calypte helenae) is found in Cuba and Pine Island, slightly longer than 5.5 cm (2. 12 inch) and weighs about 2 grams. This is the smallest bird in existence and the smallest warm-blooded vertebrate with shrews.
Hummingbirds are strong, muscular and have long thin wings. They can fly up and down, left and right, and up and down quickly. They can stand still in front of flowers and feed on nectar and insects. The body feathers are sparse, the appearance is scaly, and it is often metallic.
A few species are similar in appearance, but most species are different. Men in the latter category have all kinds of beautiful decorations.
There are different colors of iridescent bib feathers on the neck. Other special features are the short and thick shafts of the crown feathers and wing feathers, spatula-shaped, filiform or flag-shaped tails, and fluffy feather clusters (usually white) on the thighs.
The mouth is slender and suitable for sucking honey from flowers. Ramphomicron and Chalcostigma have short mouths, but Ensifera ensifera's mouth is very long, which is more than half of its body length of 265,438+0 cm (8.25 inches).
Many kinds of mouths bend slightly. Eutoxeres has a crooked mouth.
However, Avocettula and Opisthoprora's mouths are upturned. Most species of hummingbirds are not paired, while Colibri and a few other species of hummingbirds live in pairs and reproduce together.
Most kinds of males defend the occupied area by flying (occupied area is where they show off to passing females). Male birds often hover in front of female birds, allowing sunlight to reflect the color of their necks.
Male birds in the occupied area chase hummingbirds of the same or different species and rush to large birds (such as crows and eagles) and even mammals (including humans). Most hummingbirds (especially smaller species) scratch, chirp or squeak.
But in U-flight, wings often hum, hiss or sonic boom, just like other birds' songs. Many kinds of tail feathers make sounds.
The nest is small and cup-shaped, and consists of plant fibers, cobwebs, lichens and mosses, which are attached to branches, big leaves or rock protrusions. Some species of nests in the genus Turtledove have a slender stem hanging under a projection or on the top of caves and culverts.
Soil and plants are placed on both sides of the nest to keep balance. Two white oval eggs (rarely 1) were laid, which was the smallest of the birds' eggs, but the egg weight was about 10% of the female's body weight.
The newly hatched chicks are blind and hairless, and are fed by their parents. After about three weeks, their feathers are full. Among all animals, hummingbirds have the most beautiful posture and the brightest colors.
Exquisite carvings and jade carvings are not comparable to this treasure of nature. Hummingbird is the smallest bird in the world. "It has not won a good reputation because it is small.". Hummingbird is a masterpiece of nature: light, swift, agile, elegant and gorgeous feathers-this little darling has everything.
It shines like emeralds, rubies and topaz. It never lets the dust on the ground dirty its clothes. It flies in the air all day and only eats grass occasionally. It shuttles between flowers and feeds on nectar. All kinds of hummingbirds are distributed in the hottest areas of the New World, mainly in South America. They are numerous, but they seem to be only active between the two tropic of cancer. Some extend their activities to temperate zones in summer, but they only stay for a short time. Among birds, the smallest hummingbird is smaller than a fly, weighing only 2 grams, not as thick as a bumblebee, and its egg weighs 0.2 grams, which is similar to peas. Its beak is a fine needle and its tongue is a thin thread; Its eyes are like two flashing black spots; The feathers on its wings are very thin and seem to be transparent; Its feet are short and small, and it is not easy to be noticed; It is rarely used enough and only stops at night; It keeps flying, fast and buzzing.
Its wings flap very fast, so when it stays in the air, it not only keeps its shape unchanged, but also looks motionless. It circled like a helicopter, only to see it stop for a minute in front of a flower and then fly like an arrow to another flower. It sticks its slender tongue into their arms and sucks their nectar, as if this is the only purpose of its tongue. People saw it madly chasing birds twenty times bigger than it, attaching to them and pecking them repeatedly: let them fly with themselves until it calmed its insignificant anger.
Sometimes, hummingbirds have very fierce fights. Mellisuga helenae, weighing 1.8g, is the smallest bird in the world.
There is also a typical North American hummingbird, Archilochus colubris, which weighs about 3 grams and is 7.6 centimeters long. The largest hummingbird is Patagona gigas, weighing only 20g.
Hummingbirds have superb flying skills and are also called "God Birds", "Comets", "Goddess of the Forest" and "Corolla".