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Breeders and fanciers of chickens accurately describe the colours and patterns [1] of the feathers of chicken breeds and varieties. This is a list of the terms used in this context. This is a list of the terms used in this context.
The speculum feathers are bright blue with white edges. The speculum is a patch, often distinctly coloured, on the secondary wing feathers, or remiges, of some birds. Examples of the colour(s) of the speculum in a number of ducks are: Common teal and green-winged teal: Iridescent green edged with buff. [1] Blue-winged teal: Iridescent green. [2]
Feathers are also valuable in aiding the identification of species in forensic studies, particularly in bird strikes to aircraft. The ratios of hydrogen isotopes in feathers help in determining the geographic origins of birds. [52] Feathers may also be useful in the non-destructive sampling of pollutants. [53]
Plumage (from Latin pluma 'feather') is a layer of feathers that covers a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage differ between species and subspecies and may vary with age classes.
Their wings are elliptical in shape and the tail is elongated. The feather colors vary with white, gray, black, and burgundy. The tail colors match with that of the rest of the body with the exception of white bars that can be seen going across the tail laterally. (see references below) Range in Mass: 360 to 650 g (13 to 23 oz)
Individual feathers over most of a Pearled bird will have more of the yellow family of pigments visible, giving them a scalloped pattern. Males do not retain the pearled colouring, but lose it soon after their first molt. Though this pattern may not be visible, it is not essentially gone, but is just covered up by more grey pigment. [5]
Transmission electron microscopy and thin-film models revealed that color is produced by thin-film interference from a single layer of keratin around the edge of feather barbules, under which lies a layer of air and melanosomes. Once the environmental conditions were changed, the most striking morphological difference was a twisting of colored ...
31 cm (12 in) long, mostly green with feathers of the upper body being green with black margins. Red plumage on the forehead and forecrown, and the red does not extend around the white eye rings. Red primary wing feathers with no red at the bend of the wing. Orange thighs and red at the base of a green tail. [18] Argentina, Bolivia [19] [20]