There are significant differences between the populations east and west of the Andes, leading to suggestions that the two should be regarded as separate species, in which case the population west of the Andes retains the English name Yellow-margined Flatbill but with the scientific name T. flavotectus, while the Amazonian population retains the scientific name T. assimilis but with the English name Zimmer's Flatbill .
The Yellow-margined Flycatcher is classified as Least Concern. Does not qualify for a more at risk category. Widespread and abundant taxa are included in this category.
Yellow-margined Flycatcher Tolmomyias assimilis = Described by: Pelzeln (1868) Alternate common name(s): Zimmer's Flatbill, Yellow-margined Flatbill Old scientific name(s): None known by website authors Photographs Pedro Vicente Maldonado, Ecuador - Mar 9, 2007 More
Second Report of Yellow-margined Flycatcher in South Pacific Noel Ureña wrote to report an unusual sighting he had on 05 December: a Yellow-margined Flycatcher (Tolmomyias assimilis) near Uvita de Osa. Noel described the location as being about 500 meters outside of the village of Uvita on the road to Cerro Uvita. It was at about 100 meters elevation in an area of second-growth woods and clearings. Noel was birding with his brother, Carlos, Cristian Valenciano and Pieter Westra, when they saw the bird. More
Yellow-margined Flycatcher calls his high, thin call Piratic Flycatcher 0.090MB WAV Hear Sound Naturesongs.com Piratic Flycatcher Mugimagi Flycatcher 0.070MB WAV Hear Sound Hong Kong Birdwatching society Mugimagi Flycatcher Mugimagi Flycatcher 0.070MB WAV Hear Sound Hong Kong Birdwatching society Mugimagi Flycatcher Great Crested Flycatcher 0. More
Yellow-margined Flycatcher Tolmomyias assimilis = Pedro Vicente Maldonado, Ecuador - Mar 9, 2007 More
XC9248 :: Yellow-margined Flycatcher (Tolmomyias assimilis examinatus) = Recording data Recordist Allen T. Chartier Date 16-07-1994 Time ? Country Venezuela Location Rio Grande, Sierra de Imataca, Bolivar Longitude W61.40'17" Latitude N8. More