(b) What are the three kinds of feathers ?
Answers
Answer:
wing tail and contuour feathers
Explanation:
Wing feathers. The wing feathers specialized for flight are characterized by uniform windproof surfaces, or vanes, on either side of the central shaft that are created by an interlocking microstructure. ...
Tail feathers. ...
Contour feathers. ..
Answer:
Types of Feathers
Feathers come in many different shapes, but all of them can be classified into six different types of feathers. The feathers we are used to seeing are flight and contour. Down feathers are what we use in pillows, quilts, and jackets. The other three feathers, semiplume, filoplume, and bristle, are not as common, but still useful to birds.
Contour feathers give shape and color to the bird. They are found everywhere except the beak, legs, and feet. Contour feathers are colored only at the ends (the only part that we see). At its base, a contour feather becomes downy which helps insulate the bird.
Semiplume feathers are a cross between down and contour feathers. Unlike down, they do have a well formed shaft. However, they do not have well developed barbicels which make them soft. Semiplume feathers are found underneath contour feathers and are used for insulation
Filoplume feathers are incredibly small. They have a tuft of barbs at the end of the shaft. Unlike other feathers which are attached to muscle for movement, filoplume feathers are attached to nerve endings. These feathers send messages to the brain that give information about the placement of feathers for flight, insulation, and preening.
Flight feathers are found two places on birds: the wings and tail. Flight feathers are long, and on the wings, have one side of the vane wider than the other. They also have stronger barbules which give them more strength for flight.
Down feathers have little or no shaft. They are soft and fluffy. Down feathers help insulate birds by trapping air. Some birds, such as herons, have special down feathers called powder down which breaks up into a fine powder. The bird then spreads this fine powder all over its body to act as a water repellent.
Bristle feathers are very stiff with only a few barbs found at the base. Bristle feathers are found around the mouth of insect eating birds where they act as a funnel. They can also be found around the eyes where they work like eyelashes.