Tyrant-flycatchers (Tyrannidae)
Yellow-margined Flycatcher (Tolmomyias assimilis) - HBW 9, p. 339
French: Platyrhynque à miroir
German: Flügelspiegel-Breitschnabeltyrann
Spanish: Picoplano Aliamarillo
Other common names: Yellow-margined Flatbill; Zimmer’s Flatbill (races E of Andes)
Taxonomy: Rhynchocyclus assimilis Pelzeln, 1868, Borba, Brazil.
Relationships within genus uncertain, pending completion of major genetic study. Race flavotectus considered by some authors to constitute a separate species on basis of disjunct distribution and vocal differences; further research required. Other races exhibit subtle variations in crown, breast and belly colours (breast becoming slightly darker in counterclockwise direction from the Guianas and NE Brazil back towards E Brazil S of Amazon (crown colour shows similar but slightly discordant pattern); further study needed on taxonomic limits within these races. Eight subspecies recognized.. View all taxonomy...
Relationships within genus uncertain, pending completion of major genetic study. Race flavotectus considered by some authors to constitute a separate species on basis of disjunct distribution and vocal differences; further research required. Other races exhibit subtle variations in crown, breast and belly colours (breast becoming slightly darker in counterclockwise direction from the Guianas and NE Brazil back towards E Brazil S of Amazon (crown colour shows similar but slightly discordant pattern); further study needed on taxonomic limits within these races. Eight subspecies recognized.
Subspecies and Distribution:
- flavotectus (Hartert, 1902) - E Costa Rica S to W Colombia (E to SW Bolívar and lower Cauca Valley) and NW Ecuador.
- neglectus J. T. Zimmer, 1939 - E Colombia, SW Venezuela and NW Brazil (R Negro region of N Amazonas).
- examinatus (Chubb, 1920) - SE Venezuela, the Guianas and NE Brazil (N bank of lower Amazon in N Pará and Amapá).
- flavotectus (Hartert, 1902) - E Costa Rica S to W Colombia (E to SW Bolívar and lower Cauca Valley) and NW Ecuador.
- neglectus J. T. Zimmer, 1939 - E Colombia, SW Venezuela and NW Brazil (R Negro region of N Amazonas).
- examinatus (Chubb, 1920) - SE Venezuela, the Guianas and NE Brazil (N bank of lower Amazon in N Pará and Amapá).
- obscuriceps J. T. Zimmer, 1939 - SE Colombia (W Meta) S to NE Ecuador and NE Peru (E Loreto N of Amazon).
- clarus J. T. Zimmer, 1939 - Peru (Amazonas, from just N of R Marañón, S to N Puno).
- assimilis (Pelzeln, 1868) - C Brazil S of middle Amazon (from Tefé, in E Amazonas, E to R Tapajós, in W Pará).
- paraensis J. T. Zimmer, 1939 - NE Brazil (E Pará, NW Maranhão).
- calamae J. T. Zimmer, 1939 - SW Brazil (SE Amazonas) and N Bolivia.
- Least Concern Enlarge map
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A bird in a tree, looking around and flying away Locality Sacha Lodge, Orellana Province, Ecuador (ssp obscuriceps)
Josep del Hoyo 3 September 2007 3 years ago 16 sec 2.8 -
A view of a nest, then a bird flying from inside Locality Sierra de Lema, Canaima National Park, Bolívar State, Venezuela (ssp examinatus)
DAVID ASCANIO 30 April 2003 4 years ago 25 sec 2.7 -
A bird leaving its nest Locality Sierra de Lema, Canaima National Park, Bolívar State, Venezuela (ssp examinatus)
DAVID ASCANIO 28 February 2007 4 years ago 10 sec 2.6
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On a branch
Locality Santa Fé de Antioquia, Antioquía Department, Colombia (ssp flavopectus)
mauricio rueda 21 April 2011 1 year ago 3.7 -
on a branch
Locality Nilo, Cundinamarca Department, Colombia
mauricio rueda 17 October 2010 1 year ago 3.1 -
perched
Locality Milpe, Pichincha Province, Ecuador (ssp flavotectus)
Dusan Brinkhuizen 27 March 2008 2 years ago 2
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Harsh "nose" calls - In a mixed flock with Ramphocaenus melanurus, Hylophilus muscicapinus, Thamnomanes caesius, Myrmotherula br Locality Kaw-Roura Nature Reserve, French Guiana
Patrick Ingremeau 26 June 2010 1 year ago 3 -
Call notes. Locality Cristalino Jungle Lodge, Mato Grosso State, Brazil
(ssp paraensis)
Scott Olmstead 22 July 2006 2 years ago 1
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