What does a bird do? What are the functions of birds?

Meat is edible; Wool can be used to make down jackets; Some birds can be used as pets; Some birds can be used as medicinal herbs (such as black chicken); Some birds can practice marksmanship; The main thing: the name can be scolding (you are a birdman, squeeze out your eggs, etc.). ）

1. Maintaining ecological balance: Birds are an important part of the natural ecosystem, and species are interdependent and mutually reinforcing through the food chain. Berries-feeding birds can help plants spread their seeds, and hummingbirds, nectar birds, and sunbirds help flowering plants spread pollen.

Without these birds, the succession of plants would be hindered and the ecological balance would be severely disrupted.

2. Promote agricultural and forestry production and income: a rhododendron can eat more than 50,000 pine caterpillars a year; A nest of swallows eats locusts up to 3 kilometers from end to end in a single summer; A single owl can hunt more than 1,000 voles in a summer; A pair of woodpeckers can protect 500 acres of forest trees from pests, and are well-deserved "forest guardians".

3. Ensuring public health and environmental sanitation: Birds that feed on insects such as cuckoos and thrushes can help control pests and reduce the use of pesticides, thereby reducing the harm of pesticide residues to people's health and pollution to the environment.

Birds such as vultures have a habit of eating carrion, and they have a special contribution to eliminating environmental pollution caused by diseased animals and rotting carcasses. Starlings and other tick-eating birds eliminate ticks and other parasites that endanger domestic and wild animals.

4. Promoting scientific and technological progress: By studying the wing and bone structure of birds, people have built airplanes and realized the dream of soaring in the blue sky; The idea of the main stadium of the Beijing Olympics came from the "Bird's Nest".

The invention of the eagle eye, navigator, etc., is also inspired by birds; Birds fly at high speed and can land on tree branches in an instant, if this technology can be directly applied to high-speed machines, many accidents can be compared! There are many secrets of wisdom in birds waiting to be studied.

1. Many birds eat pests, such as sparrows, magpies, etc.;

2. There are many birds that eat pests, such as: owls and shrike birds eat mice;

3. There are also many birds that provide meat and eggs for humans, such as: chickens, ducks, geese, ostriches, etc.;

4. There are also many birds that have become human pets, such as: parrots, thrushes, starlings, etc.;

5. There are also birds that transmit information to humans, such as: pigeons;

6. There are also birds for human beings to see, such as: brown-headed jay, chestnut-backed thrush, red-footed bitter bird, etc.

According to the relationship between birds and modern humans, there are 9 groups of ecological birds, edible birds, hunting birds, service birds, medicinal birds, family birds, feather birds, ornamental birds and beneficial birds.

1.Ecological birds: Bird ecology is related to human ecology, and birds are called ecological birds.

2.Food birds: the economic potential of birds to domesticate poultry, and wild birds with the potential to domesticate poultry.

3.Hunting birds: Strictly speaking, all birds hunted by humans for meat, eggs, or feathers fall under the category of hunting.

However, sometimes people do not hunt their egg-laying birds in order to obtain bird eggs, which should also belong to the category of hunting Qingheng hunting birds. China's stone pheasant, such as partridge, bamboo chicken, golden rooster, wild goose, bean goose, ruddy shelduck, green-winged duck, hairy-legged sandgrouse, bead-necked turtle dove, bone top chicken, etc., are all famous hunting birds. For hunting birds, it is necessary to implement the policy of "protecting, raising and hunting at the same time".

That is, rational hunting, actively carry out the domestication and semi-domestication of wild birds, and protect the female and young birds during the breeding period.

4. Service Birds: Ostriches are the largest birds in the world. The largest ostrich transport station in Mauritania has hundreds of ostriches.

The ostrich has a small three-colored flag tied around its neck for short-distance packers, and a colorful back cushion is laid on its back. The ostrich has a small black flag tied around its neck for short-distance transportation, and a rattan basket is attached to its back, which can hold a lot of goods. Long-distance transportation ostriches, can transport goods, can also carry people, can walk 500 kilometers at a time l Those ostriches are dressed in red and green, and there is a band that blows and blows, and the ostrich team dedicated to picking up and dropping off the bride is naturally more beautiful

Ostriches are even more skilled in shepherding sheep than sheepdogs. A police officer on a farm in South Africa trained a tall rice (8 feet).Weighing 136 kilograms (300 pounds), the great ostrich always holds its neck high and watches everything warily.

Ostriches often run back and forth, driving the stray sheep back to the flock in time. If a wolf or a sheep thief comes, the ostrich can kick them and cut their ribs and cut their belly with their sharp claws. Shepherding sheep for 3 years, shepherding hundreds of sheep for the farm, and never lost a single sheep.

Ostriches can't fly, but they run extremely fast. Athletes rely on their superb riding skills to control the ostrich race, which often reaches speeds of more than 50 kilometers per hour.

5.Medicinal birds (medical birds): Birds whose whole body, internal organs or their metabolites can be used as medicine to treat diseases.

6.Birds: Birds used in scientific research.

7.Feather birds: provide humans with down, decorative feathers, carving feathers and other raw materials. It is used to make various light industrial products, toys and arts and crafts, arrows and feathers are made from the tail feathers and feathers of large eagles, and pheasant tail feathers are used as decorations.

8.Ornamental birds: Birds that have ornamental value are called ornamental birds.

9.Beneficial birds: The vast majority of birds living in nature are natural enemies of agricultural and forestry pests (beasts), and some of them even feed almost exclusively on insects.

They guard forests, orchards, and fields all year round to hunt insects and eliminate pests for farmers. Birds of prey remove rotting flesh and filth and debris, play an important role in protecting agricultural and forestry production, and compete for the natural environment, and also play a great role in promoting the recovery of animal populations.

Some birds are natural insect catchers and are good helpers for farmers. Birds are forest guardians, birds have a predatory effect on many forest pests, and bird droppings contain a lot of nitrogen and phosphorus compounds, making them high-quality organic fertilizers. Birds can help humans with fishing and hunting.

Bird feathers can not only be used as down jackets and duvets to keep people out from the cold, but also can be made into shuttlecocks and beautiful decorations. <

1. Some birds are natural insect catchers and good helpers for farmers.

2. Birds are forest guards, birds have a predatory effect on many forest pests, and bird droppings contain a large number of nitrogen and phosphorus compounds, which are high-quality organic fertilizers.

3. Birds can help humans fish and hunt.

4. Bird feathers can not only be used as down jackets and duvets to keep people out of the cold, but also can be made into badminton balls and beautiful decorations.

5. Some birds have bright feathers or chirp gracefully, which is people's favorite ornamental bird or caged bird.

6. The unique physiological structure and function of birds provide research topics for human beings in biomimetic science.

Birds, for humans, are their friends.

1. In the process of foraging, birds can eat a lot of pests, protect crops, forests and plants, and reduce natural disasters caused by pests.

2. The fruit seeds that birds feed on will fall elsewhere with their droppings, so it helps the spread, reproduction and growth of plant species.

3. Birds are the main animals that humans appreciate, making our surrounding environment beautiful and colorful. Bird language can regulate the function of the human nervous system and relax people's nervousness. Many birds also accurately predict weather changes.

Fourth, birds inspire human intelligence.

1. For human beings to explore ideals, it provides the principle and blueprint of technical devices or means of transportation. In terms of the structure, function, communication and other aspects of physical technology, scientists often need to consult birds and explore the principle of biomimicry.

2. The eagle strikes the sky, the pigeon flies thousands of miles, and the birds can fly freely in the air. More than 400 years ago, the Italian Leonardo da Vinci designed an ornithopter based on his observation and study of birds, trying to flutter and fly with the movement of his pedals. Later, after many scientists' experiments, people figured out the mechanism of bird fixed-wing gliding, and realized that the wing must be like a bird's wing with a thick leading edge and a thin trailing edge, forming a curved surface to generate lift, coupled with the industry to provide lightweight metal materials and high-power engines, and finally invented the airplane in 1903, realizing the ideal of thousands of years of human desire to fly into the sky.

3. The wings of birds have many special functions and structures, which make them not only good at flying, but also can take off and land vertically, and can fly backwards, or hover in the air. Humans have used this principle to create vertical take-off and landing aircraft with bird flight characteristics.

4. The eagle soaring at an altitude of two or three thousand meters has extremely keen eyes, and it can find rabbits and mice from many relatively moving scenes, and swoop down agilely to capture them in one fell swoop. Eagle Eye is also sensitive to moving targets, quick to adjust, and can accurately identify targets. Modern electron-optical technologies made it possible to work on an Eagle-eye-like system that would help pilots identify ground targets and, at the same time, control missiles.

5. Birds have excellent navigation skills. Migratory birds travel distances ranging from hundreds of kilometres to thousands of kilometres, and they always reach their chosen destinations for generations. Scientists have found that birds have good navigation skills because they have their own special sensory organs, which can sense and analyze the changes in environmental factors in different regions of nature, so as to identify directions and find migration routes.

Some rely on identifying the position of the sun and using the sun as a directional marker; Some rely on identifying the position of the stars and using the stars to navigate; Some rely on sensing the changes in the earth's magnetic field and use geomagnetic navigation; Others use the Earth's gravitational field to navigate. The principle of bird navigation has promoted the development of the aerospace industry.