Stub-tailed dwarf tyrant

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Stub-tailed dwarf tyrant
Stubby-tailed tyrant (Myiornis ecaudatus)

Stubby-tailed tyrant ( Myiornis ecaudatus )

Systematics
Subordination : Screeching Birds (Tyranni)
Family : Tyrants (Tyrannidae)
Subfamily : Pipromorphinae
Tribe : Triccini
Genre : Myiornis
Type : Stub-tailed dwarf tyrant
Scientific name
Myiornis ecaudatus
( d'Orbigny & Lafresnaye , 1837)

The stubby-tailed dwarf tyrant ( Myiornis ecaudatus ) is a species of screeching bird from the family of tyrants (Tyrannidae) that occurs in South America . With a length of 6.5 centimeters and a weight of 4.2 grams, it is considered the smallest passerine bird in the world.

description

Appearance

The stump tail dwarf tyrants are almost tailless or only show a very short stub tail. There is no sexual dimorphism between the sexes . The head and ear covers are colored gray. The white eye ring gives the bird the appearance of wearing glasses. The iris is black-brown. The back plumage and the wings are olive green to yellowish. Some feathers on the hand and arm feathers and the short control feathers are black. The underside is whitish to cream-colored. The dark beak is comparatively long for a bird of this size. Feet and legs are flesh-colored.

Vocalizations

The sounds produced by the stump-tailed dwarf tyrant are more like those produced by insects or frogs , and thus have little resemblance to the melodic song of a bird. The tone sequence is usually weak and shrill and sounds like "crie'ie'ie- ki'i'i".

distribution and habitat

The range of the stubby-tailed dwarf tyrants includes moist forests, forest clearings and parks in the north of South America. The maximum altitude is 950 meters. In addition to the in the Amazon region , in eastern Peru and Ecuador and northern Bolivia occurring nominate Myiornis ecaudatus ecaudatus another is subspecies known:

Way of life

The birds mostly live individually or in pairs. They feed exclusively on insects (Insecta) and remain in their territories throughout the year. Different breeding seasons were found regionally. They begin in Venezuela in January, in Colombia between February and May, from June to September in Brazil and from August to October in Peru. The sack-shaped nest is made of moss, withered grass and roots and padded with fine plant fibers and hair. It has a small dome and a side entrance hole and is built at heights between one and six meters. Usually the female lays two eggs. Both parents feed the nestlings. Further details on breeding behavior have yet to be researched.

Hazard and protection

The stubby-tailed dwarf tyrant is not uncommon in most of its areas of distribution and is therefore classified by the IUCN as a LC IUCN 3 1st svg" Least Concern ". Due to its small size, it is sometimes overlooked.

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literature

  • Josep del Hoyo , Andrew Elliott, David A. Christie: Handbook of the Birds of the World, Cotingas to Pipits and Wagtails. Volume 9, Lynx Edicions, 2004, ISBN 84-87334-69-5 .
  • Thomas S. Schulenberg, Douglas F. Stotz , Daniel F. Lane, John P. O'Neill, Theodore A. Parker III: Birds of Peru. Princeton University Press, 2007, ISBN 978-0-691-13023-1 , p. 426.

Individual evidence

  1. ↑ B. Clock: Short-tailed Pygmy-tyrant (Myiornis ecaudatus). In: J. del Hoyo, A. Elliott, J. Sargatal, DA Christie, E. de Juana (Eds.): Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona 2016. (retrieved from http://www.hbw.com/node/57257 on April 20, 2016).
  2. ^ IOC World Bird List
  3. ^ IUCN Red List

Web links

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