plumage


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plumage,

of birds: see feathersfeathers,
outgrowths of the skin, constituting the plumage of birds. Feathers grow only along certain definite tracts (pterylae), which vary in different groups of birds.
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Plumage

 

the feathery covering of birds. It protects the body from chilling, streamlines body contours, and increases the surface of the wings and tail for flight.

Plumage consists of feathers varying in structure. There are contour feathers, down feathers, filoplumes, powder downs, and bristles. Pterylae, areas of skin on which feathers grow, alternate with apteria, skin areas that lack feathers but are usually covered by them. Only Struthionidae, penguins, and screamers have feathers that are evenly distributed over the skin. Usually the downy feathers and powder downs are hidden by the vanes of the contour feathers that lie on one another, but in some birds, such as the vulture, the powder downs are exposed. In herons, owls, goatsuckers, swifts, and many passerines the powder downs are located on the apteria; in Crypturiformes they are located only on the pterilae. In the majority of other birds the powder downs are found over the entire body.

Plumage is renewed periodically, usually annually, by molting. The colors of plumage are due to the presence of pigments and structural properties.

plumage

[′plü·mij]
(vertebrate zoology)
The entire covering of feathers of a bird.

plumage

the layer of feathers covering the body of a bird
References in periodicals archive ?
If my memory of genetics serves me right, if a white barnacle mates with a normal plumage barnacle they will have a one in four chance of producing a white offspring but a one in two chance of producing a normal plumage carrier.
chrysopeplus bright yellow and black plumage may be considered aposematic, considering this species toxicity (Weldon, 2000; Skelhorn & Rowe, 2007).
Therefore, as a continuation of our research on the MITF and DCT genes, the present study was conducted to investigate polymorphisms in these two genes to assess their associations with different black and white plumage color in Asian duck breeds.
Birds of paradise, with their super-black plumage, increase the brilliance of adjacent colors to our eyes, just as we perceive the red even though the apple is in the shade."
Natalie will also assess regions of the genome associated with plumage colouration, to find out more about the genetics underlying the varying plumage nodes.
Golden pheasant factfile | |The golden pheasant - Latin name Chrysolophus pictus - was introduced from China about 100 years ago | In China, the bird is considered to be a sign of good luck and prosperity | The male is brightly coloured with a yellow crown and lower back, dark wings and upper neck, red underparts and long finely barred tail while the female has mottled brown plumage and a pale brown face, throat, breasts and sides | The bird's diet includes berries, grubs, seeds and buds | The UK has between 50 and 100 breeding pairs with the female laying a clutch of about eight to 12 eggs in April
The qualitative traits included plumage color, shank color, beak color, eye color, wattle size, earlobe size and comb type as described by Cabarles et al., (2012).
Galvan says, "Knowing beforehand that different pigments and structures produce different types of colors in feathers, we examined the appearance of the plumage of all species of extant birds and determined if the color patches that they contain are produced by melanins or by other pigmentary elements.
At various times after landing on the lawn, 7 to 8 crows paused while pecking at the lawn, settled in the grass (in both green and dry patches), and pressed their partially spread wings, tails, and ruffled belly plumage to the ground, apparently anting.
They differ in plumage coloration and biometric variables (Cramp and Perrins, 1993; Lefranc and Worfolk, 1997; Panov, 2011).
During that history, male plumage did diversify, the researchers report May 6 in Evolution.
In addition to striking plumage, the Dorking has remarkably short legs and five toes instead of the four more prevalent among chickens.