Pucrasia
| Koklass pheasant | |
|---|---|
 |
|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Galliformes |
| Family: | Phasianidae |
| Subfamily: | Phasianinae |
| Genus: |
Pucrasia G.R. Gray, 1841 |
| Species: | P. macrolopha |
| Binomial name | |
|
Pucrasia macrolopha (Lesson, 1829) |
|
The koklass (Pucrasia macrolopha) is a superspecies of Galliform, being closely related to progenitive grouse that lived during the Miocene. They are more distantly related to pheasants. Koklass are only species in the genus Pucrasia. Both the words koklass and pucrasia have been onomatopœically derived from the bird's territorial call. Koklass are boreal adapted species which separate into three distinct species groups. They are one of the few galliforms that regularly fly uphill and are capable of sustained flights of many miles. They are monogamous with a slight tendency toward social polyandry. Both parents rear the chicks. Koklass are largely vegetarian for much of the year consuming pine nuts, pine shoots, bamboo shoots and seeds. They are highly insectivorous during the warmer months that coincide with nesting and chick-rearing. During this phase of their life cycle they live almost exclusively on ants but also are documented consuming catkins, pollen and fruit.
Koklass pheasant is a monotypic species of genus Pucrasia with nine subspecies recognised so far. These are:
This entry deals with the subspecies P. m. biddulphi, which ranges from Kashmir east to Kullu in India. With exception of the subspecies P. m. nipalensis, P. m. castanea and P. m. macrolopha, which are endemic to the southern side of northwest and western Himalaya, other five are confined to China and Mongolia.
The koklass pheasant is a medium-sized elusive bird confined to high altitude forests from Afghanistan to central Nepal, and in northeastern Tibet to northern and eastern China. Upper parts of male koklass pheasant are covered with silver-grey plumage streaked velvety-black down the centre of each feather, and it has the unique feature of a black head, chestnut breast and prominent white patches on the sides of neck. The females differ from males in above characters and instead their upper parts are covered with pale brown plumage. Both sexes, however, have distinct elongated tails tipped with pale feathers. The males are known to weigh about 1135–1415 g and the females, about 1025–1135 g, with the body length varying from 58–64 cm and 18–22 cm respectively. Immature and juveniles resemble adult females in plumage pattern.
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Wikipedia