Black-tailed myiobius

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Black-tailed myiobius
Myiobius atricaudus - Black-tailed Flycatcher.JPG
At São Luiz do Paraitinga, Brazil
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Tityridae
Genus: Myiobius
Species:
M. atricaudus
Binomial name
Myiobius atricaudus
Lawrence, 1863
Myiobius atricaudus map.svg

The black-tailed myiobius or black-tailed flycatcher (Myiobius atricaudus) is a species of passerine bird in the family Tityridae. It was previously placed in the family Tyrannidae. [2] Black-tailed flycatchers are found in Brazil, Colombia, Costa Rica, Ecuador, Panama, Peru, and Venezuela. [3] Their natural habitats are subtropical or tropical moist lowland forests and heavily degraded former forest. They are usually found alone or in pairs, but may join flocks of several species. [3]

Contents

Subspecies

Seven subspecies are recognised; M. a. atricaudus from south-western Costa Rica, Panama and western Colombia; M. a. portovelae from western Ecuador and north-western Peru; M. a. modestus from eastern Venezuela; M. a. adjacens from southern Colombia, eastern Ecuador, eastern Peru and western Brazil; M. a. connectens from north-eastern Brazil south of the River Amazon; M. a. snethlagei from north-eastern and eastern Brazil; M. a. ridgwayi from southeastern Brazil. [2]

Description

The black-tailed myiobius closely resembles the whiskered myiobius (M. barbatus) and the sulphur-rumped myiobius (M. sulphureipygius) in appearance, with olive upper parts and a yellow rump. The underparts differ in being buff rather than tawny or greyish-olive, but birds living in eastern Brazil tend to have yellowish or yellowish-buff underparts. Another distinguishing feature is the location in which the bird is seen. The black-tailed myobius haunts woodland edges and secondary forests and is less active or acrobatic than the other two species; it is found at altitudes up to 1,400 m (4,600 ft). [4]

Distribution and habitat

The species has a patchy distribution in tropical Central and South America. It is present in Costa Rica, Panama, Colombia, Venezuela, Ecuador, Peru (on both sides of the Andes) and large parts of Brazil. [1] Where their ranges overlap, it is generally found in drier habitats than the whiskered myiobius (M. barbatus), and at higher elevations. [5] It generally frequents forest verges and secondary growth, often near water, whereas the whiskered myiobius prefers the interior of forests. [4]

Status

Destruction of the Amazon rainforest is reducing the area of suitable habitat for this bird and its numbers are thought to be in decline. It is an uncommon species with a patchy distribution, nevertheless, it has a very wide range and the total population size is likely to be large; as a result, the International Union for Conservation of Nature has classified it as being of "least concern. [1]

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References

  1. 1 2 3 BirdLife International (2016). "Myiobius atricaudus". IUCN Red List of Threatened Species . 2016: e.T22699726A93745080. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22699726A93745080.en . Retrieved 17 November 2021.
  2. 1 2 Gill, Frank; Donsker, David, eds. (2017). "Cotingas, manakins, tityras & becards". World Bird List Version 7.3. International Ornithologists' Union. Retrieved 9 January 2018.
  3. 1 2 Kirwan, Guy. "Black-tailed Flycatcher". Neotropical Birds Online. Retrieved 1 August 2017.
  4. 1 2 Ridgely, Robert S.; Tudor, Guy (2009). Field Guide to the Songbirds of South America: The Passerines. University of Texas Press. pp. 247–248. ISBN   978-0-292-71748-0.
  5. "Myiobius barbatus". Neotropical Birds. Cornell Lab of Ornithology. Retrieved 21 June 2016.

Further reading