what is the difference between contour and down feathers?
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Contour feathers cover the body of the bird, providing protection from the environment. They also provide the bird's coloring. Down feathers are small, soft, and fluffy, and provide insulation. Semiplumes are halfway between down and contour, and are found between contour feathers.
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Symptoms include irreversible loss of feathers, shedding of developing feathers, development of abnormal feathers, new pinched feathers, and loss of powder down. Other possible symptoms include overgrown or abnormal beak, symmetrical lesions on the beak and occasionally nails.
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One of the main characteristics that is used to distinguish one class of animals from another is type of skin covering. Mammals have hair or fur, birds have feathers, reptiles have dry scales, amphibians have soft, moist skin, and fish have wet, slimy scales.
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Both are also designed to add depth to your face, but in different ways. Bronzing primarily warms up your face, adding color in places where the sun would naturally hit. ... Bronzer tends to be more orange and can have a shimmery finish, while contouring is more neutral with (generally) a matte finish.
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As nouns the difference between feather and hair is that feather is a branching, hair-like structure that grows on the bodies of birds, used for flight, swimming, protection and display while hair is (label) a pigmented filament of keratin which grows from a follicle on the skin of humans and other mammals.
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About Fill Power and Warmth: Generally speaking, the higher the fill power (quality of goose down), the better. A higher quality goose down will provide a wider "comfort range". In other words, a higher quality down will keep you warmer when it is cold and cooler when it is warm, compared to a lower fill power.
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Down and feather fillings are the most popular natural duvet fillings, both goose and duck. ... Natural filled duvets using goose or duck down or feather have better thermal insulation than synthetic duvets. This means you don't need as much filling to achieve the same tog rating, often making them lighter.
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The term 'down alternative' refers to a polyester microfiber material used in pillows and bedding that is designed to mimic the lightness and softness of authentic duck or goose down. Unlike real down, which can trigger allergies for some individuals, down alternative is completely hypoallergenic.
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Down to feather ratio is the amount of down inside a jacket, versus the amount of feathers. The higher the number in favour of down, the warmer the jacket. High quality jackets should have at least an 80-20 down-feather ratio, because down does a much better job at trapping air than feathers.
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The second difference is that crocodile skins have a small pore close to the edge of each of the scales, which is a remnant of a hair follicle. Alligators have no pores. As you can see in the picture below, Niloticus bags (left) typically have larger scales than Porosus bags (right), which are smaller and more defined.
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In contour plowing, the land is plowed across the slopes and along the contour lines. ... Contour ploughing follows the “natural shape” of the slope without altering it. Terrace farming alters the shape of the slope to produce flat areas that provide a catchment for water.
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The differences between males and females include the size of the comb and wattles, the size of the spurs (in older birds), and the characteristics of the hackle and cape feathers. ... In addition, males have sickle feathers in their tails and hackle feathers on their backs, and females do not.
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So when you compare wool duvets vs down duvets it pays to choose the driest environment possible. ... This means the humidity under a down or feather quilt is higher than when sleeping under wool, making it much more comfortable for dust mites (and a lot less comfortable for allergy sufferers).
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The highest grade of down, used to make the most comfy and costly bedding, involves a practice called live-plucking. That's when feathers and the undercoating of geese and ducks are pulled off their skin while the waterfowl are still alive.
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Geese are typically larger than ducks, therefore making their down clusters larger. ... Larger down clusters equals higher fill power, resulting in a fluffier pillow. Availability - In general, duck down is also less expensive because the supply is much greater than goose down.
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Down is the soft undercoating of geese and ducks. It consists of clusters of light, fluffy filaments growing from a central quill point. A single down cluster is three dimensional and looks similar to a dandelion pod. Feathers are the plumage, or outer growth, of birds.
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Down alternative comforters, in contrast, feature a mixture of synthetic materials such as rayon or polyester in an effort to mimic down. Down tends to breathe more and be warmer, while down alternative tends to be more affordable and more comfortable for people with allergies.