Ochre-lored Flatbill (Tolmomyias flaviventris) [XC428096]
by Dante Buzzetti from S\u00edtio Sapupara, Maranguape-CE, Cear\u00e1, Brazil (canto)
Ochre-lored Flatbill (Tolmomyias flaviventris) [XC245328]
by Jeremy Minns from Vereda la Victoria hacia Bello Horizonte, Tamara, Casanare, Colombia (song)
Subspecies
Tolmomyias flaviventris (Sibley and Mornoe 1900, 1993) was provisionally split into Ochre-lored Flatbill (Tolmomyias flaviventris) and Tolmomyias viridiceps by Stotz et al. (1996) but this treatment has not been adopted, following SACC (2005).
Relationships within genus uncertain, pending completion of major genetic study. Western Amazonian subspecies (viridiceps, zimmeri, subsimilis) sometimes treated as a separate species on grounds of plumage and vocal differences. However, taxonomic limits of all subspecies poorly delineated. Named taxon borbae, from Borba (R Madeira, in Brazil), considered an intergrade between viridiceps and nominate. Subspecies collingwoodi, described from Trinidad, included within aurulentus.
The following 6 subspecies are recognised:
aurulentus (Todd, 1913) - Eastern Panama, northern and eastern Colombia, northern and central Venezuela, Trinidad and Tobago, the Guianas and northern Brazil (R Branco east to northern Pará and Amapá).
dissors Zimmer, JT, 1939 - South-western Venezuela and north-eastern Brazil (northern Pará near R Jamundá, and from west of R Tapajós east to R Tocantins and Marajó I).
flaviventris (Wied, 1831) - Eastern Brazil south of Amazon (Maranhío south to Mato Grosso and Espírito Santo) and eastern Bolivia (north-eastern Santa Cruz).
viridiceps (P. L. Sclater and Salvin, 1873) - South-eastern Colombia, eastern Ecuador, eastern Peru and western Amazonian Brazil. Considered by some authors to be a distinct species, Olive-faced Flatbill (Tolmomyias viridiceps).
zimmeri Bond, 1947 - Northern and central Peru (San Martín south to Junín). Considered by some authors to be a subspecies of Olive-faced Flatbill (Tolmomyias viridiceps).
subsimilis Carriker, 1935 - South-eastern Peru, south-western Brazil and north-western Bolivia. Considered by some authors to be a subspecies of Olive-faced Flatbill (Tolmomyias viridiceps).
BirdLife International Species Factsheet