What are the types of feathers? What are the different types of bird feathers?

Feathers are epidermal derivatives unique to birds (also found in some dinosaurs) and cover almost all of the birds' bodies. There is a void in the middle to reduce the mass of the feathers. Lightweight, tough, elastic and warm. The processed and selected feathers are clean and shiny, and have high economic value.

Feathers can be divided into three categories: regular feathers, down feathers and fiber feathers. The main feather, also known as the feather, is large, hard and straight, and consists of a feather shaft and a feather piece (or armor feather). It can be divided into fly feathers and tail feathers, which are the materials for making feather fans; Some birds, down feathers, also known as brocade feathers, are born under the main feathers of adult birds, with the chest and abdomen as the most, slender, flexible, warm, is a good bedding material for making pillows, quilts and clothes, especially goose down and duck down is better.

The feathers, also known as hairy feathers, are born on the edge of the eyes.

The base of the beak and between the regular feathers and the down feathers.

Class. Overview.

Feathers can be divided into regular feathers, down feathers, semi-down feathers, fiber feathers and powder according to their structure.

Masa Feather. It is distributed on the body surface, wings, and tail, including large feathers (feathers) on the outside of the body, and flight feathers and tail feathers that are born on the wings and tail. The number of flight feathers and tail feathers is constant.

The end of the feather shaft is the feather root, which is deeply rooted in the **. There are many parallel feather branches obliquely on both sides of the feather axis, and the two sides of each feather branch are divided into neatly arranged feather branches. The 1 row of pinnae branches on the distal side of the pinnae has many pinnae branches, and its tip has a thin hook that connects with the pinnae branches on the proximal side of the pinnae to form flat and elastic pinnae to fan the air and protect the body.

Down feathers. It is densely born under the main feather, and the feather branch is slender into a filament, and it is born at the tip of the feather root. The feather branches are short, and the top is clustered with filamentous branches, and the feather branches have no hooks, no feather branches or fine hooks, and cannot be connected into feathers, so the feathers are fluffy and downy.

Waterfowl down feathers are more developed, and duck down is this kind of feather. The down feathers covered by the body surface of the chicks after breaking the shell are called chick down feathers, which are developed in the early adult chicks, while the late adult chicks are sparse or even none. The down feathers do not have a feather hook at all.

Half down feathers. A type of feather between a down feather and a regular feather, with the structure of a regular feather but lacking a feather hook and flange, so it is fluffy like a down feather. It is generally distributed under the main feather.

Filoplume. Also known as "hairy feathers", scattered between the main feathers and down feathers, only with a slender feather trunk, hair-like, with a few feathers and feathery twigs at the top. The basic function of hairiness is the sense of touch.

The feather shaft is slender and mixed with the main feather and the down feather. The number of feathers and feather branches is small or absent, and it is a degraded positive feather. Feathers, also known as hairy feathers, are found at the edge of the eyes, at the base of the beak, and between the feathers and down feathers.

Powder [feather] is a specialized down feather that grows throughout life without being replaced, and the end of the feather and feather twigs are constantly broken into powdery particles, which helps to remove dirt from the main feather or make the feather waterproof. The heron's powder [feather ran] is well developed, and it is distributed in patches on the thorax, abdomen and flanks. The powder of eagles and parrots is distributed throughout the body.

Birds that usually lack tail fat glands tend to have well-developed pink [feather ran].

The structure of the main feather.

Feather shaft - located in the central axis, hollow, also known as "feather feather" and "feather stem". The tubes of the feather shaft contain some very light foam-like substance, which makes it easy for the bird to fly, and this special structure also allows the bird to fly without breaking its wings.

Feather - the lower part of the feather shaft, also known as the "feather stalk", hollow, translucent, deep inside.

There are three types of feathers, down feathers, and hairy feathers. The main feather is a type of bird feather that consists of a feather shaft and a feather petal, and many feather petals are born on the feather shaft. It can be used to make fans, brooms and other supplies.

The secondary feather is another type of bird feather, also known as the hind feather, which is born at the base of the main feather and is generally a cluster of scattered small feathers. Down feathers are born on the body surface of young chicks and the base of the main feathers of adult birds, also known as cotton feathers, commonly known as down, which is a kind of bird feathers. <

There are three types of feathers, down feathers, and hairy feathers.

The main feather is a type of bird feather that consists of a feather shaft and a feather petal, and many feather petals are born on the feather shaft. It can be used to make fans, brooms and other supplies. The secondary feather is another type of bird feather, also known as the hind feather, which is born at the base of the main feather and is generally a cluster of scattered small feathers.

Down feathers are born on the body surface of young chicks and the base of the main feathers of adult birds, also known as cotton feathers, commonly known as down, which is a kind of bird feathers. Born at the base of the main feathers of adult birds or on the body surface of chicks. The feather trunk is degraded, and the feather branches are soft and clumped; The feather twigs are slender, unhooked, shaped like cotton wool, fluffy, and not petal-shaped.

It has a strong thermal insulation ability. Waterfowl are particularly rich in winter down, and duck down is commonly used.

The hairiness is very thin and hair-like, and it grows in a mixture of the main feather and the down feather, and can only be seen after the main feather and down feather are removed.