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Uses of Feathers
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There are so many different ways that birds use feathers that there is no
way they can all be listed here. This page will let you know the
most common uses and a few that are odd but interesting.
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FLIGHT
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This Turkey Vulture show his long
primary feathers.
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Obviously, birds use feathers to fly. The long
flight feathers help propel the bird through the air, while the contour
feathers make the rest of the bird streamline.
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WARMTH
During the colder months, feathers help insulate birds to
keep them warm. Also, during the hot months feathers can help keep
the bird cool. Some birds that live in colder areas, such as
Redpolls, have up to 30% more feathers during the winter than
summer.
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STEALTH
Owls have special serrated flight feathers on their wings
that help them fly silently. The serrated edge breaks up the air as
it moves over the wing reducing the amount of noise. Ducks and
doves, on the other had, have a very smooth leading edge to
their wing, and therefore produce a loud whistling noise when flying.
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DISPLAYING
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Snowy Egret displaying upper tail
coverts. In the early 19th century, this bird was
hunted for its feather which were used in women's hats.
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Some birds can move their brightly colored feathers in
a way that attracts a mate. Peacocks can fan their upper tail covert
feathers producing a beautiful bluish green fan. Other birds, such
as the Eastern Kingbird, have a stripe of colorful feathers hidden
underneath the contour feathers on top of their head. The Eastern
Kingbird displays these bright yellow feathers only when trying to find a
mate.
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SOUNDS
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Wilson's Snipe
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Some birds produce sounds using their feathers. The
Ruffed Grouse flaps its wings while standing on a hollow log to produce a
drumming sound (and the hollow log makes the sound louder as it echoes
inside). Nighthawks and Snipe dive towards the ground and pull up at the last
second to produce an unusual 'growl-like' sound. This sound is made
as air travels quickly over the wing feathers. |
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DISTRACTIONS
Some birds, like the Dark-eyed Junco, have bright
feathers on the outside of their tail which they flash when being
chased. They then cover these feathers and quickly turn the other
way while trying to lose their predator.
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SNOWSHOES
Believe it or not, Ptarmigans (birds that live in the
snow) have feathers on their feet that act like snowshoes. These
feathers help the birds from falling through deep snow.
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CAMOUFLAGE
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The Snowy Owl blends in perfectly
with a snowy field.
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Some birds don't want to be seen, so their feathers
help them blend in with their habitat. Owls, for example, can easily
blend in with bark as they push their bodies up against a tree's
trunk. The Snowy Owl, which lives where there are no trees, blends
in perfectly with a wintry scene.
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PROTECTION
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Close-up of a Hornbill's
"eyelashes"
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Feathers help protect the bird's delicate skin.
Without feathers, a bird would be cut badly if it flew into a thick bush.
Some birds, such as Hornbills, even have bristle feathers that act like
eyelashes which protect the bird's eyes.
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WATER CARRIERS
The Sandgrouse, a bird that lives in the desert, dips
its breast feathers into water and then flies to its
chicks where they will suck the water off the parent's
feathers.
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