Southern pearl prickly tail
| Southern pearl prickly tail | ||||||||||||
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Southern pearl prickly tail |
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| Margarornis squamiger | ||||||||||||
| ( d'Orbigny & Lafresnaye , 1838) |
The southern pearl prickly tail ( Margarornis squamiger ) or sometimes just pearl prickly tail is a species of bird from the family of potters (Furnariidae). The species occurs in the South American countries Argentina , Bolivia , Peru , Ecuador , Colombia and Venezuela . The IUCN classifies the stock as “ Least Concern ”.
features
The southern pearl prickly tail reaches a body length of about 15.7 centimeters. The reddish brown to chestnut colored top has a strong shimmer. The crown is a little more brown. A noticeable white brow stripe runs over the eye. The throat is also white. The sides of the neck and the rest of the underside are olive brown and covered with creamy white, teardrop-shaped speckles that are bordered in black. The tail is relatively long and stiff and has small, protruding spines.
distribution and habitat
The bird is relatively common in humid temperate zones with moderate temperatures, where it inhabits forest edges and denser hedge landscapes in the plateaus as well as Polylepis forests above the tree line. He prefers mossy trees overgrown by epiphytes . Its habitats are found at altitudes between 1800 and 3500 meters.
behavior
The bird likes to climb thin branches on various climbing plants, while also moving backwards. It jumps back and forth between smaller branches and twigs, which is similar to the behavior of a leaf scout . Usually it moves in the middle stratification layers up to the canopy. Despite his lively activity, he is a relatively inconspicuous person. You can observe it alone, in pairs and also in groups with some conspecifics and other bird species. He builds his nest as a mossy ball with side entrances. The eggs are white.
Subspecies
Three subspecies have been described, which differ mainly in their coloration:
- Margarornis squamiger squamiger (d'Orbigny & Lafresnaye, 1838)
- Margarornis squamiger perlatus ( Lesson , 1844)
- Margarornis squamiger peruvianus ( Cory , 1913)
literature
- Steven L. Hilty , William L. Brown: A Guide to the Birds of Colombia. Princeton University Press, 1986, p. 367, ISBN 978-0691083728 .
- Robert S. Ridgely , Guy Tudor : Field Guide to the Songbirds of South America. The Passerines. University of Texas Press, 2009, ISBN 978-0292717480 , p. 511.
- Thomas Schulenberg , Douglas F. Stotz , Daniel F. Lane: Birds of Peru. Princeton University Press, 2007, ISBN 978-0691049151 , p. 326.
- Robert S. Ridgely, Paul J. Greenfield: Birds of Ecuador Field Guide , Vol. 1, Cornell University Press, 2001, p. 453, ISBN 978-0-8014-8720-0
- Robert S. Ridgely, Paul J. Greenfield: Birds of Ecuador Field Guide , Vol. 2, Cornell University Press, 2001, p. 361, ISBN 978-0-8014-8721-7
- Steven L. Hilty, John A. Gwynne, Guy Tudor: Birds of Venezuela , Princeton University Press, 2002, p. 489, ISBN 978-0691092508
Web links
- Internet Bird Collection Pearled Treerunner (Margarornis squamiger ) pictures and videos
- Avibase Southern pearly prickly (Margarornis squamiger) pictures and other information
- Antpitta Pearled Treerunner Margarornis squamiger perlatus (Eng.) Image
- Flickr Pearled Treerunner (Margarornis squamiger) picture
- Flickr Pearled Treerunner (Margarornis squamiger) picture
Individual evidence
- ↑ Margarornis squamiger in the endangered Red List species the IUCN 2010.2. Listed by: BirdLife International, 2009. Retrieved July 9, 2010.