Berlepschsylphe

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Berlepschsylphe
Systematics
Class : Birds (aves)
Order : Sailor birds (Apodiformes)
Family : Hummingbirds (Trochilidae)
Tribe : Coquettes (Lophornitini)
Genre : Long-tailed hummingbirds ( Aglaiocercus )
Type : Berlepschsylphe
Scientific name
Aglaiocercus berlepschi
( Hartert, E , 1898)

The Berlepschsylphe ( Aglaiocercus berlepschi ) is a species of bird from the hummingbird family (Trochilidae). The species is endemic to Venezuela . The stock is on the IUCN as endangered ( Endangered estimated).

features

The male Berlepschsylphe, including the 14 to 15 cm long outer tail feathers, reaches a body length of about 22 cm with a weight of about 5.5 g. The female is significantly smaller with 9.5 to 11 cm and a weight of approx. 4.5 g. The male has a short black beak. The top shimmers green with a slightly darker glittering green on the top of the head. The underside is bronze-green, but the throat glitters blue. The thigh feathers are brown-yellow white. The outer control springs are extremely long and wide, purple at the base, which turns into blue away from the body. The central control feathers are significantly shorter and colored blue-green. The female has a green shimmer on the top, but has a glittering blue skull. The throat, chest and stomach are predominantly white, the sides bronze-green. The tail is slightly forked and blue-green. The outer control feathers are spotted white and with 4 cm significantly shorter and thinner than the males. Young birds are similar in color to the females, but the head feathers appear frayed brownish-yellow.

Behavior and nutrition

The Berlepschsylphe gets its nectar from flowering undergrowth, vines and trees. Here she particularly prefers plants of the genus Inga . When looking for food she is alone or in pairs and looks for her food in the strata from the low undergrowth to the tree tops. It prefers forest edges and open habitats. As a trapliner, it flies regularly in quick succession to very specific, scattered flowers. Occasionally, he defends their territory very aggressively. She hunts insects waiting from her seat.

Vocalizations

Her singing contains a series of squeaky tones that sound like bsit ... bsit ... bsit .... In addition, it emits a rising tititi-titsi..si..sii chirping, which is probably a hunting call . The black-eared hummingbird makes similar sounds.

Reproduction

The breeding season is from August to January. It builds epiphytes in a domed nest . The nest is built by the female, who also hatches the eggs.

distribution and habitat

Distribution area of ​​the Berlepschsylphe

The Berlepschsylphe lives on the coastal slopes, in northeast Venezuela east on the Cordillera de la Costa in the Serranía de Turimiquire to Cordillera de Caripe on the borders of the states of Sucre , Anzoátegui and Monagas . It prefers scrub and forest areas in the subtropical mountain areas at altitudes between 1450 and 1800 meters.

migration

The Berlepschsylphe is considered a resident bird .

Subspecies

The species is considered to be monotypical .

Etymology and history of research

Ernst Hartert described the Berlepschsylphe under the name Cyanolesbia berlepschi . The type specimen was collected by a Mr. Caracciolo in the mountains near Cumaná . It was not until 1930 that John Todd Zimmer introduced the new genus Aglaiocercus . This word is made up of the Greek words "aglaia ἀγλαΐα " for "shine, splendor, beauty" and "cerkos κέρκος " for "tail". The species name is dedicated to Hans Hermann Carl Ludwig von Berlepsch (1850–1915).

literature

  • Douglas Leonard Altshuler, Eduardo de Juana, Peter Boesman in: Josep del Hoyo , Andrew Elliott, Jordi Sargatal , David Andrew Christie, Eduardo de Juana: Venezuelan Sylph (Aglaiocercus berlepschi) in Handbook of the Birds of the World Alive . Lynx Edicions, Barcelona.
  • James A. Jobling: Helm Dictionary of Scientific Bird Names . Christopher Helm, London 2010, ISBN 978-1-4081-2501-4 .
  • Ernst Hartert: Mr. Hartert further described a new Humming-bird . In: Bulletin of the British Ornithologists' Club . tape 8 , no. 57 , 1898, pp. 16 ( biodiversitylibrary.org ).
  • John Todd Zimmer : Birds of the Marshall Field Peruvian Expedition, 1922–1923 . In: Publication Field Museum of Natural History. Publication 282 (=  Zoological series ). tape 17 , no. 7 , 1930, p. 233-480 ( biodiversitylibrary.org ).

Web links

Commons : Berlepschsylphe ( Aglaiocercus berlepschi )  - collection of images, videos and audio files

Individual evidence

  1. ↑ a b c d e f Douglas Leonard Altshuler u. a.
  2. ^ IOC World Bird List Hummingbirds
  3. ↑ a b Ernst Hartert, p. 16
  4. ↑ John Todd Zimmer, p. 290.
  5. ↑ James A. Jobling p. 36

Remarks

  1. ↑ Zimmer assigned the genus Aglaiocercus kingii smaragdinus ( Gould , 1846), Cynanthus bolivianus Gould , 1880 a synonym for Aglaiocercus kingii mocoa ( Delattre & Bourcier , 1846) and Ornismya kingii Lesson, RP , 1832 a synonym for the nominate form of the heavenly sylphe .