Results 211 to 220 of about 2,923 (243)
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EFFECTS OF SPECIMEN AGE ON PLUMAGE COLOR

The Auk, 2008
Abstract Museum specimens are valuable for studies of plumage color in birds, but feather color may fade over time and not accurately reflect the colors of live birds. In particular, it has been suggested that ultraviolet (UV) color may be more susceptible to degradation than human-visible colors.
JESSICA K. ARMENTA   +2 more
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Disruptive sexual selection for plumage coloration in a passerine bird

Nature, 2000
The theory of sexual selection was developed to explain the evolution of highly exaggerated sexual ornaments. Now supported by vast empirical evidence, sexual selection is generally considered to favour individuals with the most extreme trait expression.
E, Greene   +5 more
openaire   +2 more sources

The Puzzle of Colorful Plumage

ACADEMIA. The magazine of the Polish Academy of Sciences
Scientists are investigating how and why birds have developed such colorful feathers, often adorned with extravagant ornaments.
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Automated Bird Plumage Coloration Quantification in Digital Images

2014
Quantitative measurements of bird plumage color and patch size provide valuable insights into the impact of environmental conditions on the habitat and breeding of birds. This paper presents a novel perceptual-based framework for the automated extraction and quantification of bird plumage coloration from digital images with slowly varying background ...
Tejas S. Borkar, Lina J. Karam
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Delayed maturation of plumage coloration and plumage spottedness in the Barn Owl (Tyto alba)

Journal für Ornithologie, 1999
The Barn Owl (Tyto alba) varies in plumage from dark reddish-brown to white, and from heavily marked with black spots to immaculate. Males are commonly lighter coloured and less spotted than females. I assessed whether male and female Barn Owls delay the full expression of plumage coloration and spottedness to the second year of life. In Switzerland, I
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The Evolution of Bird Coloration and Plumage Elaboration

1995
Although physically homogeneous, birds come in a wide variety of colors, rivaling butterflies and tropical reef fishes. Such variation invites attention and many hypotheses have been developed to explain the evolution of avian color and pattern. In addition, plumage of birds have structural elaborations that go beyond its insulative and aerodynamic ...
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Genetic basis of chicken plumage color in artificial population of complex epistasis

Animal Genetics, 2021
Guoying Hua   +2 more
exaly  

THE INHERITANCE OF PLUMAGE COLOR IN THE TURKEY*

Journal of Heredity, 1943
W. R. B. ROBERTSON   +2 more
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A HEN WITH VARIABLE PLUMAGE COLOR

Journal of Heredity, 1931
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