Pale-streaked wren

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Pale-streaked wren
Ochraceous Wren (6914453566) .jpg

Pale-streaked wren ( Troglodytes ochraceus )

Systematics
Order : Passerines (Passeriformes)
Subordination : Songbirds (passeri)
Superfamily : Certhioidea
Family : Wrens (Troglodytidae)
Genre : Troglodytes
Type : Pale-streaked wren
Scientific name
Troglodytes ochraceus
Ridgway , 1882

The Fahl Streif Wren ( Troglodytes ochraceus ) is a bird art from the family of wrens (Troglodytidae) in Costa Rica and Panama is widespread. The IUCN assesses the population as Least Concern .

features

The pale-streaked wren reaches a body length of approx. 9.0 to 10.0 cm with a weight of approx. 8.0 to 10.0 g. The reins are yellow-brown-brown, behind the eye it has a distinctive ocher-colored eye stripe that widens towards the back and stands out from the darker ear covers. The skull and the upper side are splendid medium brown, the front skull a little more orange, the rump a little reddish brown. The feathers of the hand and arm are striped orange-brown and dull dark brown, the umbrella feathers are strong brown with blackish-brown stripes. The control feathers are dull brown, with blackish brown bands. The chin, throat and chest are yellow-brown-brown, the lower breast and upper abdomen are yellow-brown-white, the flanks and the lower abdomen are darker yellow-brown-brown. The eyes are dark brown, the beak dark brown with a pale base on the lower beak. The legs are brown. Both sexes are similar. Young animals have a dark brown scaly underside, the eye stripe is less brightly colored.

Behavior and nutrition

There are no reliable data on the diet and behavior of the pale-streaked wren. It usually looks for its food on mossy tree trunks and in epiphytes .

Vocalizations

The singing of the pale streak wren is a muffled medley of fluid warbles and high, thin, indistinct whistles. The sounds contain rolling, thin, light piir or piiu and deep, weak chur tones.

Reproduction

The pale-streaked wren probably breeds from April to June. In Costa Rica, for example, a nest was observed during the feeding process in early May, another was built late in May. Three nests have been described, but none have been investigated. These were found in a hole in a dead branch or in freely swinging epiphytes on kinked, heavily overgrown branches that were supported by creepers and free roots. Common groups with adult birds and two juveniles have been spotted.

distribution and habitat

The pale wren prefers moist mountain forests with epiphytes, but also areas with scattered trees and forest edges in grazed lands. He is mostly on the move at altitudes between 900 and 2450 meters, rarely at 600 meters or up to 3000 meters.

migration

The pale-streaked wren is considered a standing bird .

Subspecies

There are two known subspecies.

  • Troglodytes ochraceus ochraceus Ridgway , 1882 occurs in Costa Rica and western Panama.
  • Troglodytes ochraceus festinus Nelson , 1912 is widespread in eastern Panama. The subspecies is smaller, lighter on the underside and has a larger beak.

Some authorities see another subspecies in the Troglodytes ochraceus ligea Bangs , which occurs in the western and central mountains of Panama , in 1908. It looks more matt on the top with a stronger beak.

Etymology and history of research

The first description of the pale wren was in 1882 by Robert Ridgway under the scientific name Troglodytes (?) Ochraceus . The type specimen was collected by Juan Cooper at Irazú . As early as 1809, Louis Pierre Vieillot introduced the genus Troglodytes, which was new to science . This name is derived from "trōglē, trōgō κτρωγλη, τρωγω " for "cave, gnaw" and "-dutēs, duō -δυτης, δυω " for "diving, immersing". The species name "ochraceus" is of Latin origin and means "ocher". "Festinus" is the Latin word for "hasty, nimble" from "festinare" for "to hurry". »Ligea« is derived from »ligus, ligeia λιγυς, λιγεια « for »nightingale, clearly harmonious, sweet sounding«. In Latin, "ligea" is a "tree or forest nymph".

literature

  • Outram Bangs: On certain Costa Rican Birds . In: Proceedings of the New England Zoological Club . tape 4 , March 19, 1908, p. 23-35 ( biodiversitylibrary.org ).
  • Edward Clive Dickinson , Leslie K. Overstreet, Robert Jack Dowsett, Murray Duncan Bruce: Priority! The Dating of Scientific Names in Ornithology . Aves Press Limited, Northampton 2012, ISBN 978-0-9568611-1-5 .
  • James A. Jobling: Helm Dictionary of Scientific Bird Names . Christopher Helm, London 2010, ISBN 978-1-4081-2501-4 .
  • Donald Eugene Kroodsma, David Brewer, Eduardo de Juana in: Josep del Hoyo , Andrew Elliott, Jordi Sargatal , David Andrew Christie , Eduardo de Juana: Ochraceous Wren (Troglodytes ochraceus) in Handbook of the Birds of the World Alive . Lynx Edicions, Barcelona.
  • Edward William Nelson: Descriptions of new genera, species and subspecies of birds from Panama, Colombia and Ecuador . In: Smithsonian miscellaneous collections . tape 60 , no. 3 , 1912, pp. 1-25 ( biodiversitylibrary.org ).
  • Robert Ridgway: Notes on some Costa Rica Birds . In: Proceedings of the United States National Museum . tape 4 , no. 270 , 1882, pp. 333-337 ( biodiversitylibrary.org - 1881).
  • Louis Pierre Vieillot: Histoire naturelle des oiseaux de l'Amérique Septentrionale, contenant un grand nombre d'espèces décrites ou figurées pour la première fois . 2 (delivery 18). Chez Desray, Paris 1809 ( biodiversitylibrary.org - 1807-1809).

Web links

Commons : Pallid Wren ( Troglodytes ochraceus )  - Collection of images, videos and audio files

Individual evidence

  1. ↑ a b c d e f g h Donald Eugene Kroodsma u. a.
  2. ↑ IOC World Bird List Dapple-throats, sugarbirds, fairy-bluebirds, kinglets, hyliotas, wrens, gnatcatchers
  3. ↑ a b Robert Ridgway, p. 334.
  4. ^ Edward William Nelson, p. 22.
  5. ↑ Outram Bangs, p. 29.
  6. ↑ Louis Pierre Vieillot (1809), pp. 52–56.
  7. ↑ James A. Jobling, p. 391.
  8. ↑ James A. Jobling, p. 279.
  9. ↑ James A. Jobling, p. 159.
  10. ↑ James A. Jobling, p. 226.

Remarks

  1. ↑ Vieillot categorized the house wren ( Troglodytes aedon ) and the reed warbler ( Acrocephalus arundinaceus ) in the new genus.
  2. ↑ For the history of the publication see Edward Clive Dickinson u. a. P. 157.