The Malayan peacock-pheasant (Polyplectron malacense) also known as crested peacock-pheasant or Malaysian peacock-pheasant, is a medium-sized pheasant of the galliform family Phasianidae. The closely related Bornean peacock-pheasant (P. schleiermacheri) was formerly included here as a subspecies, but as understood today, P. malacense is monotypic.
It is one of the shortest-tailed peacock-pheasants. Adult males are about 50 cm long, about half of which is made up by the tail. Their tarsus measures approximately 6.5 cm, and their wings are 20–21 cm long; they weigh from over 600 to nearly 700 g.
The female is slightly smaller than the male, with a noticeably shorter tail; measuring about 40 cm overall, its tail is slightly less than 20 cm long, while its tarsus measures c.6 cm and its wing length is 18 cm. Adult females weigh about 450-550.
Their plumage is generally pale brown with small black spots and bands all over, creating the "salt-and-pepper" effect found in most peacock-pheasants. It has iridescent blue-green eyespots with a buff border on its upperwings, back, and on the 22 rectrices, a white throat running down to the center of the breast, and a loose, pointed and upturned dark blue-green crest on its forehead. A bare facial skin surrounds the eyes with their bluish-white iris; usually pink, it becomes bright orange-red during courtship. The bill and legs are blackish.
Female plumage is duller than in males, with a vestigial crest and eyespots only on remiges and rectrices. On the wing coverts and back, they have dark dots instead, which are pointed towards the feather tip.
Young birds resemble females but have even less-developed eyespots and usually lack them entirely except on the rectrices. The downy hatchlings are pale chestnut-brown above and buff below.
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