Amethyst ear hummingbird

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Amethyst ear hummingbird
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Amethyst- eared hummingbird ( Colibri serrirostris )

Systematics
Class : Birds (aves)
Order : Sailor birds (Apodiformes)
Family : Hummingbirds (Trochilidae)
Genre : Violet- eared hummingbirds ( Colibri )
Type : Amethyst ear hummingbird
Scientific name
Colibri serrirostris
( Vieillot , 1816)

The amethyst ear hummingbird ( Colibri serrirostris ), sometimes just called amethyst ear, is a species of bird from the hummingbird family (Trochilidae). The species has a large range that includes the South American countries Brazil , Bolivia , Paraguay and Argentina . The IUCN classifies the stock as “ Least Concern ”. The species is considered to be monotypical .

features

The male amethyst-eared hummingbird reaches a body length of about 12.5 centimeters, while the female is only about 11 centimeters tall. The male weighs around 7 grams, while the female weighs around 6 grams. The upper side and the wing coverts of the male are dark green with a light blue tinge. The scaly throat shines bright green and stands out clearly from the blue-green underside. He has an amethyst-colored spot on his ear . The wings are blackish purple. The approx. 47 millimeter long blue-green tail has a subterminal blue band. The under tail cover is white. The beak and feet are black. The female is similar, but slightly smaller and less intensely colored than the male. The lower part of the abdomen is gray. The back of the back is criss-crossed with gray hems. The outer control springs have gray-white tips.

distribution and habitat

Distribution area of ​​the amethyst-eared hummingbird

The distribution area extends from Bolivia through central Paraguay to the south and east of Brazil in the states of Mato Grosso , Goiás , Bahia and Espírito Santo as well as to the north-west of Argentina in the south of the province of Córdoba . In the heyday you can often find them on eucalyptus and kapok trees .

behavior

The hummingbird is not territorial and migrates. It is not normally found in its typical breeding areas outside of the breeding season. In the evenings, in particular, it sits on a branch, like the flycatcher , from which it starts its hunt for insects. It builds its bowl-shaped nest on the side of the vertical branches of a bush or in a fork of a branch. It mainly consists of the fly seeds of aster family and cotton wool. He interweaves these with spider threads and a few leaf parts or bracts. In an experiment, the scientists Paolo Ioala and Floriano Papi have shown that the amethyst-eared hummingbird can distinguish between different smells such as lavender , jasmine , eucalyptus, amyl acetate , turpentine and no odor through olfactory perception .

Etymology and history of research

Louis Pierre Vieillot described the amethyst-eared hummingbird under the name Trochilus serrirostris . The type specimen came from Brazil. It was not until 1824 that it was added to the newly created genus Colibri by Johann Baptist von Spix . However, Spix used the synonym Colibri crispus . This name is the Spanish word for hummingbird and probably originally comes from the Caribbean. "Serrirostris" is made up of the Latin words "serra" for "saw" and "-rostris, rostrum" for "-beaked, beak".

literature

  • Rolf Grantsau : The hummingbirds of Brazil , Expressao e Cultura. Rio de Janeiro. 1988, p. 64, ISBN 9788520801017
  • Crawford H. Greenewalt: Hummingbirds , Dover Pubn Inc, 1991, p. 55, ISBN 978-0486264318
  • George C. West, Carol A. Butler: Do Hummingbirds Hum ?: Fascinating Answers to Questions About Hummingbirds , Rutgers University Press, 2010, pp. 39f, ISBN 978-0813547381
  • James A. Jobling: Helm Dictionary of Scientific Bird Names . Christopher Helm, London 2010, ISBN 978-1-4081-2501-4 .
  • Louis Pierre Vieillot: Analyze d'une nouvelle ornithologie élémentaire . Deterville, Paris 1816 ( online [accessed June 29, 2014]).
  • Johann Baptist von Spix: Avium species novae, quas in itinere annis MDCCCXVII-MDCCCXX per Brasiliam jussu et auspiciis Maximiliani Josephi I. Bavariae Regis Augustissini suscepto colleoit et descripsit . tape 1 . Impensis editores, Munich 1824 ( online [accessed June 29, 2014]).

Individual evidence

  1. ^ IOC World Bird List Hummingbirds
  2. ↑ Louis Pierre Vieillot, p. 69
  3. ^ Johann Baptist von Spix, p. 80
  4. ↑ James A. Jobling p. 113
  5. ↑ James A. Jobling p. 355

Web links

Commons : Amethyst- eared hummingbird ( Colibri serrirostris )  - Collection of images, videos and audio files