How many species of birds are there? How can endangered birds be protected?

According to unreliable sources, there are about 9,500 species of birds in the world, which is inaccurate because there are many birds that have not been classified or have not been found. As we all know, this nature is very strange, many things appear wonderfully, and they leave wonderfully, leaving no clues in nature, let alone a trace, but these disappeared animals have not disappeared at all, but may hide or go to a place that belongs to him to know suitable for survival, so, on this issue, I have the following opinion: <>

In my opinion, because of human selfishness, many animals in nature have lost their proper appearance, it is the selfishness of human beings, resulting in many animals have become fewer and fewer, but, fortunately, now many people have discovered this problem, and some protection measures have been taken, compared to the previous selfishness, I believe that many animals will have their own homes in the future, as we all know, the crested ibis is currently the most endangered bird in the world, I think many people should have heard of it, He preyed on fish and shrimp in wetland swamps, but due to the continuous destruction of the natural environment by humans, the crested ibis disappeared from the world in the seventies and eighties of the last century. <

In the past, many people with good family conditions had owls at home, because he was the only bird in the world who could speak, it can also be said that he was the most precious bird in the world, and the only one in the world that could not fly, his appearance brought many changes to nature, his birthplace can probably be traced back to the Cretaceous, ** no mountains, no water, only one island after another, in the Cretaceous, parrots have no other choice but to eat bats, but, good things are not long-term, With the advent of Maori and Europeans, many laws were set for nature's animals, and parrots did not have the confidence to survive, especially in the 19th century. <>

How many species of birds are there?

There are about 9,000 species of birds in 156 families in the world.

There are 1,186 species in 81 families in China, accounting for 14% of the world's bird species. There are more birds than in India and Australia, and more than in Europe and North America. It is the country with the highest number of birds in the world.

For example, there are 15 species of cranes in the world, and 9 species in China, accounting for 60%; There are 46 species of thrush birds in the world, and 34 species in China, accounting for 74%. Although China is rich in bird resources, some species have a small distribution area and a small number, making them precious and rare species. Some are endangered, such as black stork, white stork, bamboo shadow, yellow-bellied pheasant, black-necked crane, white crane, red-crowned crane, red-necked crane, whooper swan, whooper swan, merganser duck, etc.

In the past few years, the relevant departments of China have been taxonomically a group of birds under the subphylum of vertebrates. Birds are bipedal, homeothermic, oviparous vertebrates covered in feathers, with forelimbs that evolved into wings and a hard beak. Birds range in size from very small hummingbirds to giant ostriches and emus (a large, flightless bird native to Australia).

Archaeopteryx is the most famous primitive bird found in the Mesozoic Jurassic period, with body characteristics common to both birds and reptiles, such as teeth and fingerclaws on wings. Some scholars have proposed that dinosaurs are the ancestors of birds; The newly discovered Chinese dragon bird and Confucius bird in northeastern China are thought to be the link connecting dinosaurs and birds, more like feathered dinosaurs, older than Archaeopteryx.

How can endangered birds be protected?

1) Establishment of nature reserves. The establishment of natural parks and nature reserves has become the main means for countries around the world to protect natural ecology and wildlife from extinction and reproduction. (2) Establish rare animal farms.

Due to the destruction of habitat and breeding conditions, some natural populations of wild animals are bound to become extinct in the future. Therefore, it is necessary to establish conservation and breeding farms for certain rare animals, or to demarcate natural stocking areas. For example, fresh fish farming in Thailand.

3) Establish a global gene bank. For example, in order to protect the cultivated varieties of crops and their extinct wild relatives, a global gene bank network should be established. Most gene banks now hold seeds for major crops such as cereals, potatoes and legumes.

At present, there are more than 9,200 species of birds in the world, and there are more than 1,400 species of birds in China. Protecting birds can start with protecting the birds' habitat. The first thing is to protect the ecological environment around the bird habitat from being damaged.

Second, if the number of birds is very small, the existing birds can be re-ex-situ. Third, rescue injured birds, regardless of whether the species is endangered or not, need to be rescued in time.

There are about 9,500 species of birds, but this data is inaccurate because many birds are not classified or undiscovered, and we should legislate to protect endangered birds.

In fact, there is no way to fully count it, because there are too many types, and some may not have been discovered, but there are probably nearly 10,000 species that have been counted. For some endangered birds, we should build a good home for them, try not to disturb them, and let them reproduce freely.

Almost all of the birds that are common in the city are not protected.

Only those that live in the mountains and forests and are rarely seen are rare and protected birds.

Don't think about it.

Now that even sparrows have become protected animals or "three haves" animals, what kind of wild birds are not protected?

As long as they are wild birds, don't touch them to avoid trouble.

Endangered birds in China include the black stork, white stork, crested ibis, yellow-bellied horned pheasant, black-necked crane, white crane, red-crowned crane, red-necked crane, whooper swan, whooper swan, Chinese merganser, etc.

The world's endangered birds, such as the black-faced spoonbill, the kāgū, the Indian vulture, the Australian big bird, the North American migratory pigeon, the rare bird species endemic to Africa, the gray crowned crane, and 10 species of Antarctic penguins are endangered.

Of the world's 9,775 bird species, 1,212 are threatened with extinction. This number is equivalent to 1 8 of all bird species, of which 179 species are under serious threat, 344 are at high risk of extinction, and another 688 are now very rare. In almost every country and region around the world, one or more species of birds are facing extinction.

There is a high concentration of endangered species of birds in some areas, such as the Andean tropics of South America, the forested areas of the Atlantic coast of Brazil, the eastern Himalayas, the eastern island of Madagascar and the island nations of Southeast Asia.

Various species of birds are threatened with extinction, with albatrosses being the most threatened, with 95 albatrosses at risk of extinction. 60 cranes, 29 parrots, 26 pheasants and 23 pigeons are endangered. There are fewer than 10,000 birds of 966 globally threatened species and fewer than 2,500 of each of the 502 bird species.

There are fewer than 50 of each of the 77 most dangerous bird species.

There were once 160,000 species of birds on Earth, and the Tertiary period was the heyday of birds. During the four major ice ages of the Pleistocene, about 25 birds went extinct and disappeared. After the advent of humans in the late Pleistocene, an average of one bird disappeared every 83 years.

1600 In the 300 years between 1900, 90 species of birds became extinct.

Among the reasons for the endangerment of birds, habitat destruction and alteration accounted for 60, human hunting accounted for 29, followed by invasive species competition, internationalization, pollution, etc.

According to surveys and estimates, the disappearance of each bird means the disappearance of 90 species of insects, 35 species of plants, and 2 3 species of fish associated with it. At the same time, for every two species of birds, one mammal is bound to disappear with it.

And the hoopoe, which is a big threat.