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Structural coloration in animals, and a few plants, is the production of colour by microscopically structured surfaces fine enough to interfere with visible light instead of pigments, although some structural coloration occurs in combination with pigments. For example, peacock tail feathers are pigmented brown, but their microscopic structure ...
Using a machine learning algorithm, we determined the dominant color of each bird photo. Let's take a look at the American kestrel, one of the smallest and most colorful falcons in the U.S.
With the adjective as a modifier in a noun phrase, the adjective and the noun typically receive equal stress (a black bird), but in a compound, the adjective typically takes primary word stress (a blackbird). Only a small set of English adjectives function in this way: [37] The colour words black, blue, brown, green, grey, red, and white
Bright coloration of orange elephant ear sponge, Agelas clathrodes signals its bitter taste to predators. Animal colouration is the general appearance of an animal resulting from the reflection or emission of light from its surfaces. Some animals are brightly coloured, while others are hard to see.
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. Within species, there can be different colour morphs. The placement of feathers on a bird is not ...
Eggs are usually oval in shape, and have a base white colour from the predominant calcium carbonate makeup of the outer shell, called the eggshell, though passerine birds especially may have eggs of other colours, [161] such as through deposition of biliverdin and its zinc chelate, which give a green or blue ground colour, and protoporphyrin ...
Wing shape and size generally determine a bird's flight style and performance; many birds combine powered, flapping flight with less energy-intensive soaring flight. About 60 extant bird species are flightless , as were many extinct birds. [ 142 ]
Gloger's rule is an ecogeographical rule which states that within a species of endotherms, more heavily pigmented forms tend to be found in more humid environments, e.g. near the equator. It was named after the zoologist Constantin Wilhelm Lambert Gloger, who first remarked upon this phenomenon in 1833 in a review of covariation of climate and ...