Avian species are shown below:

1, poultry:

Our common chicken, ducks, geese belong to the poultry, is the most common poultry raised by humans.

2, walking birds:

Walking birds are birds that are good at walking or fast running, but can not fly some groups, called walking birds, also known as road birds, land birds. Most of the birds in the walker category have lost the ability to fly. The common ones are ostrich, emu and so on.

3, swimming bird:

Walking bird is one of the six ecological groups of birds, swimming bird is suitable for feeding in the water, such as geese, ducks, swans and so on. Like to live in the water, feet backward, webbed toes, with flat broad or pointed beak, good at swimming, diving and in the water to pull out food, most are not good at walking on land.

4, wading birds:

Wading birds are those adapted to live in the swamp and the water's edge of the birds, resting often standing on one foot, most of the food from the bottom of the water, sludge or the ground. Wading birds are those adapted to live in marshes and near water, and are wetland waterfowl, with herons and storks being common species.

5, climbing birds:

The most obvious feature of these birds is that their toes are two forward, two backward, which is conducive to climbing trees. In this category, there are woodpeckers specializing in eating pests in the bark of trees, there are caterpillars eat caterpillars, cuckoos, and live in the water all year round by catching small animals in the water for food, such as kingfishers.

6, songbirds:

Songbirds for the finch birds, a wide variety of species, songbirds are good at chirping, by the song tube control pronunciation. Most species of songbirds camp arboreal life, a few species for the ground. Songbirds are most commonly found in bird and fish markets.