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 LC    Venezuelan Tyrannulet* Id (Atlas):
    Zimmerius improbus

Description (10)
Image of Venezuelan Tyrannulet
 

Family
Tyrannidae (Tyrant-flycatchers)

Size
11.50 - 12 cm

First Described (Guide)
(Sclater & Salvin, 1871)

Habitat
Subtropical and tropical moist montane forest. From 400 - 3,000 m.

Range (Guide)
Colombia, Venezuela.

Population
Estimated population is unknown (2010).

Status LC
For more information see BirdLife International Species Factsheet.

Voice
Xeno-Canto Sound Files (more (5)...)

 
Spectacled Tyrannulet (Zimmerius improbus) [XC693966]
     by Joe Klaiber from Chamicero del Perij\u00e1 Proaves Reserve, Cesar, Colombia (call)

 
Spectacled Tyrannulet (Zimmerius) [XC170472]
     by Diego Calderon-F. from Pico Humboldt Trail, Parque Nacional Sierra Nevada, M\u00e9rida, Venezuela (song)

Subspecies
Paltry Tyrannulet (Zimmerius vilissimus) and Venezuelan Tyrannulet (Zimmerius improbus) (Sibley and Monroe 1990, 1993) are retained as separate species contra SACC (2006), who include improbus as a subspecies of Paltry Tyrannulet (Zimmerius vilissimus), pending the outcome of investigation into the taxonomy of this group by SACC.

Despite superficial resemblance to Phyllomyias, genus appears to be more closely related to Phylloscartes. This species was formerly placed in a separate genus, Tyranniscus, but exhibits plumage and morphological features (wing pattern, proportionally long tail and bill, and derived characters of both syrinx and palate) typical of present genus. Previously considered conspecific with Paltry Tyrannulet (Zimmerius vilissimus), but differs in plumage, voice and habitat.

The following 3 subspecies are recognised:

  • improbus (Sclater & Salvin, 1871)   -  Northern Colombia (Norte de Santander) and north-western Venezuela (Táchira, Mérida, Barinas). Considered by some authors to be a subspecies of Paltry Tyrannulet (Zimmerius vilissimus).
  • tamae (Phelps & Phelps Jr, 1954)   -  Northern Colombia (Santa Marta Mts) and western Venezuela (Sierra de Perijá and Paramo de Tamá, in Táchira).
  • petersi (Berlepsch, 1907)   -  Northern Venezuela from southern Lara east to Miranda. Considered by some authors to be a distinct species, Venezuelan Tyrannulet (Zimmerius petersi).



References
See References.


Files:
JPG files for Venezuelan Tyrannulet (Zimmerius improbus) - 10 files


More Information

BirdLife International

For more information about the Venezuelan Tyrannulet see... Show Articles BirdLife International Species Factsheet.


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