Light parting tree knickers
| Light parting tree knickers | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Light-crowned tree slip ( Cranioleuca albiceps ) |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Cranioleuca albiceps | ||||||||||||
| d'Orbigny & Lafresnaye , 1837 |
The Hellscheitel-Baumschlüpfer ( Cranioleuca albiceps ) is a species of bird from the family of the potter birds (Furnariidae). This species has a large distribution area, which is limited to the countries of Peru and Bolivia . The IUCN assesses the population as Least Concern .
features
The Hellscheitel-Baumschlüpfer reaches a body length of about 14 centimeters. The back, the wings and the tail are red-brown to chestnut-colored. The crown is surrounded by a black ribbon. The white crown and chin can vary to a faded yellow-brown. The color of the plumage on the neck changes to olive gray. The dark gray area of the lower cheeks is the lightest under the eyes. The sides of the head are decorated with a mixture of different shades of gray and black. The sides of the neck and the underside are dark olive-gray with occasional yellow-brown feathers.
distribution and habitat
They move in the lower to middle stratification layers of open cloud forests at altitudes of 2200 to 3400 meters. They are also found in bamboo and secondary vegetation.
behavior
The birds are alone or in groups of up to 3 animals, often together with other flocks of birds. They shimmy through the thick undergrowth, climb tree trunks like woodpeckers and jump around on the branches. In search of food, they examine mosses , bromeliads , dead leaves and tree bark. Their singing is a continuous series of loud high notes that they repeat 2 to 3 times and which sound like a weeweewee-weeweewee .
Subspecies
Two subspecies are described, which differ mainly in their coloration and their area of distribution:
- Cranioleuca albiceps albiceps (d'Orbigny & Lafresnaye, 1837) - The nominate form occurs from the southeast of the Puno region in Valcón in Peru to the La Paz department in Bolivia.
- Cranioleuca albiceps discolor Zimmer , 1939. The subspecies is common in the departments of Cochabamba to Santa Cruz . It differs by the orange-yellow-brown crown. This color also pulls over the neck.
etymology
d'Orbigny and Lafresnaye named the taxon Muscipeta albiceps . Only later was the bird categorized in the genus Cranioleuca . The word Cranioleuca is made up of cranium from the Greek kranion for the skull and the Greek leucos for light, white . The specific epithet albiceps comes from Latin and is made up of the words albus for white and -ceps for -headed (from caput the head). The subspecies name discolor is made up of the Latin words discontinuously for apart and color the color together and describing different color of the crown and neck of this subspecies.
literature
- Jon Fjeldså , Niels Krabbe : Birds of the High Andes: A Manual to the Birds of the Temperate Zone of the Andes and Patagonia, South America , Zoological Museum and Apollo Books, p. 360, ISBN 978-8788757163
- Thomas Schulenberg , Douglas F. Stotz , Daniel F. Lane: Birds of Peru. Princeton University Press, 2007, ISBN 978-0-691-04915-1 , p. 318.
- James Vanderbeek Remsen, Jr .: Geographic variation, zoogeography, and possible rapid evolution in some Cranioleuca SpineTails (Furnariidae) of the Andes , The Wilson Bulletin, Vol 96 (4), 1984, pp 515-523
- John Todd Zimmer : Studies of peruvian Birds XVIII: Diagnoses of new species and subspecies of Furnariidae from Peru and other parts of South America. Museum Novitates, number 819, 1935, p. 5 f.
Web links
- Cranioleuca albiceps inthe IUCN Red List of Threatened Species 2011.2. Listed by: BirdLife International, 2009. Retrieved January 10, 2012.
- BirdLife International: Species Factsheet - Light-crowned Spinetail ( Cranioleuca albiceps ) . Retrieved January 10, 2012.
- Videos, photos and sound recordings of Light-crowned Spinetail (Cranioleuca albiceps) in the Internet Bird Collection
- Light-crowned tree knickers ( Cranioleuca albiceps ) at Avibase; Retrieved January 10, 2012.
- Cranioleuca albiceps in the Integrated Taxonomic Information System (ITIS). Retrieved January 10, 2012.
- xeno-canto: Sound recordings - Light-crowned Spinetail ( Cranioleuca albiceps )
- Flickr Light-crowned Spinetail (subsp. Albiceps). Upper Old Coroico Road, La Paz dept., Bolivia. Sept 09th picture
Individual evidence
- ↑ Birdlife International BirdLife IBA Factsheet PE096 Valcón (engl.)
- ↑ American Museum Novitates p. 5 Studies of peruvian Birds XVIII: Diagnoses of new species and subspecies of Furnariidae from Peru and other parts of South America Cranioleuca albiceps discolor (English; PDF file; 806 kB) Original article
- ↑ The Wilson Bulletin, Vol 96 (4), 1984 Geographic variation, zoogeography, and possible rapid evolution in some Cranioleuca SpineTails (Furnariidae) of the Andes (English; PDF file; 595 kB) Original article