Results 151 to 160 of about 3,091 (181)

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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BRIGHTLY COLORED PLUMAGE IN FEMALE MANAKINS PIPRA

1981
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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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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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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Genetic basis of chicken plumage color in artificial population of complex epistasis

Animal Genetics, 2021
Jianfei Chen, Xuemei Deng
exaly  

Plumage Color and Energetics

The Condor, 1971
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A HEN WITH VARIABLE PLUMAGE COLOR

Journal of Heredity, 1931
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Speciation rates are positively correlated with the rate of plumage color evolution in hummingbirds

Evolution; International Journal of Organic Evolution, 2021
Diego F Beltrán, Allison J Shultz, Juan L Parra   +2 more
exaly  

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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Bacteria as an Agent for Change in Structural Plumage Color: Correlational and Experimental Evidence

American Naturalist, 2007
Matthew D Shawkey, Geoffrey E Hill
exaly   +2 more sources