O’Neill et al., 2011,
south of River Amazon, c. 10 km SSW of mouth of Río Napo on the east bank of Quebrada Vainilla, c. 100 m, Loreto, Peru.
Understanding of the taxonomic relationship between T. hauxwelli and T. fumigatus has been confounded by morphological variation within latter and apparent geographical overlap of the two taxa. Recent evidence shows that some of these factors may be explained by the existence of this cryptic, syntopic species, very similar in plumage to T. hauxwelli but differing in its yellow-olive vs blackish bill (2); narrow yellow eyering vs none (2); whiter throat (ns); grey-brown vs rufescent tail (2); and typically shorter song phrase (2) with fewer notes (ns), and mewing call vs none (4)#R. Mewing call, song and molecular data indicate that it is not particularly close to hauxwelli or fumigatus, but is, rather, the W Amazonian member of the “T. nudigenis complex” (see that species); molecular phylogeny suggests that the new species is sister to T. haplochrous, and also corroborates treatment of T. maculirostris as a full species, separate from T. nudigenis, although it is acknowledged that “Delimiting species within the T. nudigenis clade is not straightforward”#R; further research needed on species limits within this complex. Monotypic.
Food and feeding
Status and conservation
Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features!