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The unique, often color- and pattern-rich plumage of each of today's wide variety of bird species presents a similar evolutionary enigma. This richly varied array of phenotypes is more easily explained as the products of isolates, subsequently defended by koinophilia, than as assemblies of very diverse evolutionary relics, or as sets of ...
Both the eyes and legs are still of the normal colour. Leucism (/ ˈ l uː s ɪ z əm,-k ɪ z-/) [2] [3] [4] is a wide variety of conditions that result in partial loss of pigmentation in an animal—causing white, pale, or patchy coloration of the skin, hair, feathers, scales, or cuticles, but not the eyes. [4] It is occasionally spelled leukism.
[12] [13] A male peafowl or peacock is a larger sized bird with an average bill to tail length of 100–120 cm (40–46 in) and as much as 200–230 cm (78–90 in) to the end of a fully grown train. It weighs 4.1–5.2 kg (9–11.5 lb) and is amongst the heaviest birds in Phasianidae .
A peacock spreading his tail, displaying his plumage Peahen. Peafowl is a common name for two bird species of the genus Pavo and one species of the closely related genus Afropavo within the tribe Pavonini of the family Phasianidae (the pheasants and their allies).
The bird featured in the video, and the one that most people think of when they picture a peacock, is an Indian blue peafowl (Pavo cristatus) although they are commonly called simply Indian ...
Photographic and light microscopic images: Zoomed-out view of an Aglais io. Closeup of the scales of the same specimen. High magnification of the coloured scales (probably a different species). Electron microscopic images: A patch of wing: Scales close up: A single scale: Microstructure of a scale: Magnification: Approx. ×50 Approx. ×200 × ...
Female has black ocelli on upperparts, unspurred legs and tail of eighteen feathers. The female is smaller and duller than male. A shy and elusive bird, the mountain peacock-pheasant is distributed and endemic to montane forests of the central Malay Peninsula. The diet consists mainly of berries, beetles and ants.
The anatomy of bird legs and feet is diverse, encompassing many accommodations to perform a wide variety of functions. [ 1 ] Most birds are classified as digitigrade animals, meaning they walk on their toes rather than the entire foot.