Borneodickkopf
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Borneodickkopf ( Pachycephala hypoxantha ) |
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| Pachycephala hypoxantha | ||||||||||||
| ( Sharpe , 1887) |
The Borneodickkopf ( Pachycephala hypoxantha ) is a species of bird from the family of the Dickkopf (Pachycephalidae). In addition to the nominate form Pachycephala hypoxantha hypoxantha from northern and central Borneo, there is also the subspecies Pachycephala hypoxantha sarawacensis from western Sarawak .
features
The Borneodickkopf reaches a size of 16 centimeters. In the male of the nominate form , the apex and the top are dull olive-yellow. The forehead is colored a little brighter. The rump has a bright yellow tinge. The upper tail-coverts are yellowish-green. The reins are dark gray. The sides of the face and the ear covers are olive yellow. The dark wing feathers are lined with yellowish gray on the outside flags. The hand wings are colored ash gray towards the end. The dark upper wing-coverts have a greenish edge. The tail is black. The control springs are lined with olive-green. The chin, throat and the underside are bright yellow. The lower throat and the flanks are dull olive washed. The thighs and the under tail-coverts are yellowish. The iris is dark brown, the beak is black. The female's throat and breast are more olive colored than the male. The young birds are almost completely reddish-brown with a yellowish tinge on the underside. The breed Pachycephala hypoxantha sarawacensis shows a more monochrome yellowish underside with a more reduced greenish blurring, especially on the breast. The call ends with a loud, whip-like sound.
habitat
The Borneodickkopf lives in mountain rainforests between 900 and 2,000 m. On Mount Kinabulu it occurs at heights of up to 2,600 m.
Way of life
The Borneo thick head feeds mainly on insects and occasionally seeds. It searches for food in the crowns of small trees or in the lower areas of tall trees. Birds that had just fledged were observed in June and early November. No further information is known about its reproductive behavior. Borneo thick heads are true to their location.
Existence and endangerment
The IUCN classifies the Borneodickkopf as not endangered (least concern). It is widespread in its limited range. It is most numerous in the higher regions of Mount Kinabulu National Park.
literature
- J. Del Hoyo, A. Elliot, D. Christie (Eds.): Handbook of the Birds of the World. Volume 12: Picathartes to Tits and Chickadees. Lynx Edicions, 2006, ISBN 84-96553-42-6 .
Web link
- Pachycephala hypoxantha inthe IUCN 2013 Red List of Threatened Species . Listed by: BirdLife International, 2012. Retrieved February 6, 2014.