Do you know what birds are? Birds are explained in the first dictionary "Erya" in my country. Two legs and feathers are called birds, which can be described as highly generalized and specific in image. From a biological point of view, some people would say that all animals under the class of birds are Birds, specifically walking birds, swimming birds, climbing birds, songbirds, raptors, wading birds, etc. So let's start with the types we are most familiar with. Birds are also commonly known as birds. At present, there are more than 9,000 kinds of birds known to the world, and more than 1,300 kinds of birds have been recorded in China alone, and many of them are endemic to China.
poultry
Our common chickens, ducks, and geese belong to poultry, but the ancestors of poultry were domesticated from our ancestors. For example, goose domesticated from geese and chickens domesticated from jungle chickens retain the function of flying, but cannot fly too much. It is the most common poultry raised by humans.
walking birds
Walking birds are some groups of birds that are good at walking or running fast, but cannot fly. They are called walking birds, also known as road birds and land birds. Most of the bird-walking birds have lost the ability to fly. Common ones are ostriches, emu, etc.
poultry
Swimming birds are one of the six ecological groups of birds, covering the seven items in the traditional bird classification system: Anseriformes, Loons, Grebes, Herbs, Pelicans, Gulls, and Penguins. All species. Swimming birds are suitable for feeding in water. Such as geese, ducks, swans and so on. Likes to live on the water, the feet are stretched back, there are webs between the toes, and there are flat or pointed mouths. They are good at swimming, diving and digging food in the water. Most of them are not good at walking on land, but they fly quickly.
waders
Waders are those birds that are adapted to living in swamps and water, often standing on one foot at rest, and mostly get their food from the bottom of the water, sludge or the ground. Waders are those birds that are adapted to living in swamps and water. For wetland waterbirds, herons and storks are common species.
Poultry
The most distinctive feature of these birds is that their toes have two forwards and two backwards, which are helpful for climbing trees. Among them, there are woodpeckers that eat pests in bark, rhododendrons that eat caterpillars, and kingfishers that live by the water all year round by catching small animals in the water.
songbird
Songbirds are passerine birds with a wide variety. Songbirds are good at singing and are controlled by the syrinx. The structure of the syrinx is complex and developed, and most species have complex syrinx muscles attached to both sides of the syrinx. Songbirds are mostly small birds; the beak is small and strong; the feet are short and strong. Most species of songbirds live arboreal, a few species are ground dwellers. Songbirds are the most common in the flower, bird, fish and insect market. These lively birds, with sweet sounds and bright feathers, are deeply loved by people.
Raptor
Raptors are one of the six major ecological groups of birds. Raptors include secondary ecological groups such as eagles, eagles, kites, and falcons, all of which are predatory birds. In the ecosystem, the number of individuals of raptors is smaller than that of other groups, but they are at the top of the food chain and play a very important role. Birds of prey are often domesticated for hunting, and some peoples on the grasslands still have falconers who train eagles when they are very young until they can assist and hunt independently.
