Tepuiglanzthroatchen

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Tepuiglanzthroatchen
Polytmus milleri - 1820-1860 - Print - Iconographia Zoologica - Special Collections University of Amsterdam - UBA01 IZ19100093.jpg

Tepuiglanzthroatchen ( Polytmus milleri )

Systematics
Class : Birds (aves)
Order : Sailor birds (Apodiformes)
Family : Hummingbirds (Trochilidae)
Genre : Gloss throats ( Polytmus )
Type : Tepuiglanzthroatchen
Scientific name
Polytmus milleri
( Chapman , 1929)

The Tepuiglanzkehlchen or Tepuigoldkehlchen ( Polytmus milleri ) is a species of bird from the hummingbird family (Trochilidae). The species occurs only in the border area of ​​the South American countries Brazil , Guyana and Venezuela . The IUCN assesses the population as Least Concern . The species is considered to be monotypical .

features

The Tepuiglanz throat reaches a body length of about 12 centimeters with a weight of about 6 grams. The top is shiny bronze green, while the underside is grass green. The wings are blackish purple. The central control springs are distinctive bronze-green and not shiny. The lateral control springs are traversed by 4 to 5 millimeter long speckles. The tail is strongly rounded. The black beak is slightly curved. The female resembles the male, but has a white lined underside.

Occurrence

Distribution area of ​​the Tepuiglanzthroatchen

The Tepuiglanzkehlchen occurs in the table mountains or Tepuis of Venezuela. You can also find it in the extreme north of the state of Roraima, for example on the Roraima Tepui . In Guyana, it was observed on the south side of Mount Kowa .

Habitat

This hummingbird is found in the subtropical zone . It can often be seen on the edge of cloud forests and in open terrain with scattered trees and bushes. It moves at heights between 1300 and 2200 meters. Typical plant species of this vegetation are those of the genera Vochysia , Chrysophyllum and Euterpe .

behavior

This hummingbird is a loner. He builds his nest freely just a few meters from the ground. He prefers to look for his food in sparse bushes.

Etymology and history of research

Frank Michler Chapman described the hummingbird under the name Waldronia milleri . The type specimen was collected on February 13, 1929 by the brothers Alfonso and Ramón Olalla. In 1760 Mathurin-Jacques Brisson introduced the genus Polytimus , to which he assigned the bronze-backed gloss throat ( Polytmus guainumbi ( Pallas , 1764)). "Polytmus" is derived from the Greek "polytimos πολυτιμος " for "very precious, valuable". This in turn is made up of "polys πολυς " for "a lot" and "timē τιμη " for "value, esteem". The species name is dedicated to Waldron DeWitt Miller (1879–1929).

literature

  • Adrian Barnett, Rebecca Shapley, Paul Benjamin, Everton Henry and Michael McGarrell: Birds of the Potaro Plateau, with eight new species for Guyana , Cotinga 18, (2002), pages 19-36.
  • Rolf Grantsau : The hummingbirds of Brazil , Expressao e Cultura. Rio de Janeiro. 1988, ISBN 9788520801017 .
  • Rodolphe Meyer de Schauensee, William H. Phelps , Guy Tudor : A Guide to the Birds of Venezuela. Princeton University Press, Princeton 1992, ISBN 978-0691082059 .
  • Frank Michler Chapman : Descriptions of new birds from Mt. Duida, Venezuela . In: American Museum novitates . No. 380 , 1921, pp. 1–28 ( digitallibrary.amnh.org [PDF; 26.6 MB ]).
  • James A. Jobling: Helm Dictionary of Scientific Bird Names . Christopher Helm, London 2010, ISBN 978-1-4081-2501-4 .
  • Mathurin-Jacques Brisson: Ornithologie, ou, Méthode contenant la division des oiseaux en ordres, sections, genres, especes & leurs variétés: a laquelle on a joint une description exacte de chaque espece, avec les citations des auteurs qui en ont traité, les noms quils leur ont donnés, ceux que leur ont donnés les différentes nations, & les noms vulgaires . tape 1 . Ad Ripam Augustinorum, apud Cl. Joannem-Baptistam Bauche, bibliopolam, ad Insigne S. Genovesae, & S. Joannis in Deserto, Paris 1760 ( biodiversitylibrary.org ).

Web links

Commons : Tepuiglanzkehlchen  - Collection of images, videos and audio files

Individual evidence

  1. Birds of the Potaro Plateau (PDF; 3.0 MB)
  2. Frank Michler Chapman, p. 14.
  3. ^ Mathurin-Jacques Brisson, p. 40.
  4. James A. Jobling, p. 314.
  5. Frank Michler Chapman, p. 15.

Remarks

  1. This can be seen from Brissons Volume 3 on p. 667. Polytmus guainumbi was previously published without a scientific name, so that this explains why the genus has a year of publication before the species name of Pallas.