What benefits do birds have to humans? Please give examples.

Birds have many benefits to humans.

1. Some birds have tender meat and delicious taste, making them a delicacy for people. Bird eggs are also rich in nutrients and can be eaten by humans.

2. Some birds are natural insect hunters and are good helpers for farmers. For example, an owl can kill 1,000 voles in one summer, which is equivalent to protecting a ton of food. A thousand purple-winged starlings roosting in a colony can destroy twenty tons of locusts during the breeding period. A swallow can eat 500,000 to 1 million mosquitoes, flies and aphids in a summer.

3. Birds are also forest guards. Birds play an important role in preying on many forest pests. Moreover, bird droppings contain a large amount of nitrogen and phosphorus compounds and are high-quality organic fertilizers.

4. Birds can help people fish and hunt. For example: Cormorants are masters of fishing.

5. Bird feathers can not only be used to make down jackets and duvets to protect people from the cold, but can also be made into badminton balls and beautiful decorations.

6. There are some birds with bright feathers or melodious chirps, which are popular as ornamental birds or caged birds.

7. Many birds, such as flowerpeckers and sunbirds, feed on nectar and spread pollen to flowers and trees.

8. Some birds can be used as medicinal materials, such as silky chicken, white chicken, clove chicken, etc. There are also top-quality bird's nest medicinal materials and supplements.

9. Birds can help people deliver letters. In ancient times, there were no telephones, so many letters were delivered by carrier pigeons.

10. The unique physiological structures and functions of birds provide bionic science research topics for the innovation of mechanical systems, instruments and equipment, building structures and technological processes. For example, "Pigeon Eye Radar System", "Hawkeye Eye System Missile" and so on.

Extended information:

When science meets nature, what we learn from birds:

In the animals of George Kelly, the "Father of Aviation" In the atlas, many birds became prototypes for aircraft models. In 1808, for example, Kelly designed a model of an ornithopter inspired by a heron he had shot down with a shotgun at his mansion—George's ornithopter copied the heron's shape and proportions. At this time, it was still 83 years before the first hang glider flew for the first time. The advent of airplanes was not until the beginning of the 20th century.

Throughout the history of human imagination or practice of flight, birds have played an indispensable role - in 1906, Brazilian Alberto Santos Dumont equipped the front end of the fuselage with a load-bearing Supplementary part, this inspiration from the wild duck enabled the "14bis" aircraft to successfully fly over a record 220 meters; in 1909, aviation pioneer Igor Eitrich drew on the gliding posture of pigeons and created his own design The fuselage and wings of the aircraft...

In addition to birds, flora and fauna such as winged gourds, trout, and flying squirrels also provide reference and help to pilots. The birth and transformation of gliders, airplanes and other aircraft not only prove that human flight is inseparable from the study and imitation of nature, but also affirm, supplement and pay tribute to an "old and young" discipline - bionics.

Reference link: Baidu Encyclopedia_Birds