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 ?
Also, the ultra-black plumage is particular to birds of paradise that are involved in mating displays, with the feathers of the others showing a microstructure that did not allow for the same amount of structural absorption of light.
Qualitative Traits: The plumage coloration of chickens has gained significant attention in developing countries like Pakistan probably due to its impact on market value and supply chain.
According to the researchers, 32% of the species studied have complex plumage patterns, with the vast majority of these complex patterns produced by melanins rather than carotenoids.
The anting crow had its breast pressed to the grass, the back, head, and neck plumage slightly ruffled with wings half unfolded at its sides, the wings and partially spread tail also pressed to the grass.
This information is added to the relative plumage coloration and molecular techniques to find out whether all sources of analyses agree in their conclusions on the similarity or the difference between the two subspecies of grey shrike from the north and the south.
Putian White ducks have extended white plumage color and were obtained by selecting a mutation which appeared in Putian Black.
During that history, male plumage did diversify, the researchers report May 6 in Evolution.
Different phenotypic variant such as body measurements, plumage color, shank color, earlobe color, skin color, comb color and comb types were observed on Non-descriptive Common Desi (ND), Hilly (H) and Naked Neck (NN), respectively.
It is lacking carotenoid in its plumage, making what should be a red colour show as the yellow.
The different colour is down to an abnormality in the plumage.
This reference for general readers in high school and up supplies Q&A facts on parrots, known for their bright colorful plumage.
Le squelette fossilise exceptionnellement preserve d'un jeune dinosaure decouvert en Allemagne, montrant qu'il avait des filaments de plume, indiquerait que le plumage devait etre courant chez ces creatures prehistoriques, selon une etude publiee avant-hier lundi aux Etats-Unis.