Harman's ear pheasant
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Harman's ear pheasant ( Crossoptilon harmani ) |
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| Crossoptilon harmani | ||||||||||
| Elwes , 1881 |
The Harman-hoki ( Crossoptilon Harmani ) is a bird art from the family of pheasant-like . It is native to the south-west and south-central part of Tibet and the far north of Arunachal Pradesh . The monotypical species is sometimes also regarded as a subspecies of the white ear pheasant . However, since it is overall smaller than the latter species and very constant in color, the species status is probably justified. In the northeast of its range, however, the species forms mixed populations with white ear pheasants of the subspecies drouynii .
description
The top of the head is velvety black except for the rear parting. The chin, throat and part of the front part of the neck are white, like the ear covers, which are only slightly elongated in contrast to other ear pheasants. Most of the body plumage is bluish ash-gray, on the upper side a little darker and tinged with brown, and on the rump and upper tail-coverts a little lighter. The white stomach area stands out more or less strongly. The wrist wings are black-brown, the arm wings and shield springs are blue-gray on the outside flag and black on the inside flag . The inner arm wings also show a purple-blue sheen. The control feathers correspond to those of the white ear pheasant and are blue-black with a green and blue sheen.
The sexes do not differ. The body length is 720 mm, that of the tail between 457 and 559 mm. The wing length is between 265 and 306 mm.
voice
The courtship call (audio example) is a loud, rough series of calls that can be heard over a distance of 2 km, which begins with individual calls and then condenses in a crescendo .
distribution
The distribution of the Harman ear pheasant ranges from the valleys of the Brahmaputra and Subansiri in Tibet to about 80 km north of Lhasa and eastwards to the Yigrong Mountains . He also lives in the extreme northeast of the Indian state of Arunachal Pradesh.
Way of life
The Harman's eared pheasant inhabits wooded hill country and scrub made of dwarf rhododendron at altitudes between 3000 and 5000 m. It is seldom seen at lower altitudes of up to 2400 m. Outside of the breeding season, the species can be found in flocks of 5 to 10 birds, which primarily look for food in the mornings and evenings in open areas. The breeding season is in May and June. The clutch consists of about 9 uniformly cream-colored eggs measuring 55 × 42 mm.
literature
- Heinz-Sigurd Raethel: Hühnervögel der Welt , Verlag J. Neumann-Neudamm GmbH & Co. KG, Melsungen 1988, ISBN 3-7888-0440-8
- Steve Madge , Phil McGowan : Pheasants, Partridges & Grouse. Helm Identification Guides, London 2002, ISBN 0-7136-3966-0 .
Web links
- Crossoptilon Harmani in the Red List of Threatened Species of the IUCN 2008. Posted by: BirdLife International, 2008. Accessed on 30 September, 2010.
- Photos of Crossoptilon harmani in the Oriental Bird Club image database , accessed September 30, 2010
- xeno-canto: sound recordings - Tibetan Eared Pheasant ( Crossoptilon harmani )