What can birds do for human beings? In addition to catching insects

Like music, birdsong, as a kind of information, can adjust the function of people's nervous system, relax people's nervousness, and thus make people feel relaxed. Concentrate on listening to birds, let the tired brain have a rest, and the fatigue of the body can be eliminated.

The action of staring at birds can also make people's attention focused and make people's spirit orderly step by step, which is not only conducive to preventing myopia and improving their eyesight, but also helps to cultivate the habit of seeking quietness while moving, and can also directly assist in the treatment of various diseases.

Many birds can also accurately predict the weather and become small weather stations for free. On a sunny morning, sparrows are jumping and chirping happily, which indicates that the weather will continue to be fine. At sunrise or dusk in summer, owls crow in a low voice, which indicates that it will rain. Turtledove stretched out its neck and made a hoarse cry, indicating rainy days.

People invented airplanes according to the flight principle of birds, and birds can also provide valuable information for studying air pollution? .

The unique physiological structure and function of birds provide bionic scientific research topics for the innovation of mechanical systems, instruments and equipment, building structures and technological processes.

Extended data:

Birds also have a special function, which is to inspire human wisdom and provide principles and blueprints for human beings to explore ideal technical devices or vehicles. It can be said that birds are human teachers in structure, function and communication, and scientists often need to ask birds many modern scientific and technological questions.

Since human beings invented the plane and flew into the sky, they have been constantly innovating the plane, and they have quickly surpassed birds in size, load and speed. Modern planes fly faster, farther and higher than any bird, especially

After the mid-20th century, various aircrafts appeared, which can sail between stars, which is beyond the reach of birds. Nevertheless, in some flying techniques and aircraft structures, man-made aircraft are still not as perfect and exquisite as birds, not to mention energy consumption. For example, golden pheasant can fly more than 4000 kilometers over the ocean without losing 60 grams. If the plane can fly at this efficiency, it will save a lot of fuel.

Birds' wings have many special functions and structures, which make them not only good at flying, but also perform many "stunts" that human technology can't achieve in 2 1 century. Hummingbird is a "helicopter" among birds. It can take off and land vertically and fly backwards. When sucking nectar, it does not stop on the flower like a bee, but hovers in the air. What a clever flight this is.

The migration distance of migratory birds ranges from several hundred kilometers to several thousand kilometers. However, they can always reach the destination chosen by generations accurately. This shows that migratory birds have good navigation ability.

Scientists have studied these phenomena and believe that birds have good navigation ability because they all have their own special sensory organs, which can feel and analyze the changes of environmental factors in different regions of nature, so as to identify the direction and find the migration route. Some rely on identifying the position of the sun and using the sun as a direction marker; Some use astrology to navigate by identifying the orientation of the stars; Some rely on sensing changes in the earth's magnetic field and using geomagnetic navigation; Others use the earth's gravity field to navigate.

References:

Baidu Encyclopedia-The Contribution of Birds