Tyrant-flycatchers (Tyrannidae)
Riverside Tyrant (Knipolegus orenocensis) - HBW 9, p. 378
French: Ada de l’Orénoque
German: Flussufer-Dunkeltyrann
Spanish: Viudita Ribereña
Taxonomy: Cnipolegus orenocensis Berlepsch, 1884, Angostura [= Ciudad Bolívar], River Orinoco, Venezuela.
Race sclateri possibly a separate species, exhibits marked sexual plumage dimorphism whereas nominate and xinguensis do not; insufficient information currently available to enable full assessment of taxonomy. Three subspecies recognized.
Subspecies and Distribution:
- orenocensis Berlepsch, 1884 - E Colombia (NE Meta) and C Venezuela (lower R Apure and upper R Orinoco E to Ciudad Bolívar).
- sclateri Hellmayr, 1906 - NE Ecuador (R Napo) through NE Peru (E Loreto) to NC Brazil (R Madeira E to R Tapajós).
- xinguensis Berlepsch, 1912 - E Brazil (lower R Xingu and R Araguaya).
- Least Concern Enlarge map
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a single individual perched in a open branch in a scrubby vegetation mostly surrounded by grasslands and wetlands Locality Hato El Cedral, Apure State, Venezuela (ssp orenocensis?)
DAVID ASCANIO 4 April 2010 2 years ago 6 sec 3.8 -
one individual perched on a branch in scrubby vegetation Locality Hato El Cedral, Apure State, Venezuela (ssp orenocensis?)
DAVID ASCANIO 4 April 2010 2 years ago 33 sec 3.5 -
a single individual perched in a expòsed branch in a scrubby vegetation surrounded by grasslands and wetlands Locality Hato El Cedral, Apure State, Venezuela (ssp orenocensis?)
DAVID ASCANIO 4 April 2010 2 years ago 9 sec 3
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an adult male
Locality Careiro da Varzea, Amazonas State, Brazil
Anselmo d Affonseca 23 weeks ago 4.2 -
A male in scrubby habitat on the Araguaia floodplain.
Locality Pousada Kuryala, Sao Felix do Araguaia, Mato Grosso State, Brazil (ssp xinguensis)
Bradley Davis 1 December 2008 2 years ago 2.5
- No sound recordings available yet
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