Gray wren

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Gray wren
Systematics
Order : Passerines (Passeriformes)
Subordination : Songbirds (passeri)
Superfamily : Certhioidea
Family : Wrens (Troglodytidae)
Genre : Cantorchilus
Type : Gray wren
Scientific name
Cantorchilus griseus
( Todd , 1925)

The Gray Wren ( Cantorchilus griseus ) is a bird art from the family of wrens (Troglodytidae), which in Brazil is endemic is. The IUCN assesses the population as Least Concern . The species is considered to be monotypical .

features

The gray wren reaches a body length of about 11.5 cm. He has an inconspicuous whitish eye stripe , gray ear covers with indistinct darker speckles. The crown of the head and the top are evenly lead gray. The wings of the hand and the wings are blackish gray on the inside flags, matt lead gray on the outside flags with indistinct darker stripes. The matt gray control feathers are criss-crossed with broad, blackish bands. The chin and throat are whitish gray, the chest gray and the rear abdominal area somewhat yellowish-brown-gray. The eyes are brown, the upper beak blackish, the lower beak pale horn-colored and the legs pale blue-gray. Both sexes are similar.

Behavior and nutrition

No data are available on the diet of the gray wren. When foraging, he is usually in pairs or family groups in the tangled undergrowth.

Vocalizations

The singing of the gray wren consists of repeated phrases of two or three tones that sound like chu-chau or chippit, chippit . These become louder with the repetitions and are simpler in their way than is usual for this genre. It is not clear whether both sexes sing.

Reproduction

The breeding biology of the gray wren has not yet been researched or has not been published.

distribution and habitat

The gray wren prefers tangled undergrowth as well as the edges of the Várzea landscape and overgrown clearings. It moves at altitudes of up to 200 meters. It can be found in the southwest of the Amazonas on the Rio Javari , on the upper reaches of the Rio Juruá and on the upper reaches of the Rio Purus .

migration

It is believed that the gray wren is a resident bird .

Etymology and history of research

The gray wren was first described in 1925 by Walter Edmond Clyde Todd under the scientific name Thryophilus griseus . The type specimen was collected by Samuel Milton Klages (1875–1957) near Hyutanahan on the Rio Purus. In 2006, Nigel Ian Mann , Frederick Keith Barker , Jefferson Alden Graves , Kimberly Anne Dingess-Mann and Peter James Bramwell Slater introduced the genus Cantorchilus, which is new to science . This name is derived from "cantus" for "song" and "orkhilos ορχιλος " for "wren". The species name "griseus, griseum, grisius" is the Latin word for "gray".

The gray wren might be a genus of its own based on its morphological characteristics, but further research is needed to confirm this assumption.

literature

  • James A. Jobling: Helm Dictionary of Scientific Bird Names . Christopher Helm, London 2010, ISBN 978-1-4081-2501-4 .
  • Donald Eugene Kroodsma, David Brewer in: Josep del Hoyo , Andrew Elliott, Jordi Sargatal , David Andrew Christie , Eduardo de Juana: Gray Wren (Cantorchilus griseus) in Handbook of the Birds of the World Alive . Lynx Edicions, Barcelona.
  • Nigel Ian Mann, Frederick Keith Barker, Jefferson Alden Graves, Kimberly Anne Dingess-Mann, Peter James Bramwell Slater: Molecular data delineate four genera of "Thryothorus" wrens . In: Molecular Phylogenetics and Evolution . tape 40 , no. 3 , September 1, 2006, p. 750-759 , doi : 10.1016 / j.ympev.2006.04.014 (2006).
  • Walter Edmond Clyde Todd: Sixteen new birds from Brazil and Guiana . In: Proceedings of the Biological Society of Washington . tape 38 , July 15, 1925, p. 91-100 ( biodiversitylibrary.org ).

Web links

Commons : Grauzaunkönig ( Cantorchilus griseus )  - Collection of images, videos and audio files

Individual evidence

  1. ↑ IOC World Bird List Dapple-throats, sugarbirds, fairy-bluebirds, kinglets, hyliotas, wrens, gnatcatchers
  2. ↑ a b c d e f g Donald Eugene Kroodsma u. a.
  3. ^ Walter Edmond Clyde Todd (1925), p. 91.
  4. ↑ a b Nigel Ian Mann u. a., p. 758.
  5. ↑ James A. Jobling, p. 179.

Remarks

  1. ↑ Mann u. a. categorized the long-billed wren into the new genus.