In the genetic analysis of the genus
Sclerurus from 2013 to which they presumably refer, the conclusion was: "Therefore, we suggest the recognition of five species within the current
S. mexicanus: (1)
Sclerurus mexicanus of Central America, comprising the ranges of
S. m. mexicanus and
S. m. pullus; (2)
Sclerurus obscurior of the Choco lowlands of Ecuador and Colombia; (3)
Sclerurus andinus of the humid Andean slopes of western Ecuador, Colombia and western Venezuela; (4)
Sclerurus macconnelli, comprising the Amazonian lowlands and, probably, the central Atlantic forest, corresponding to the ranges of subspecies
Sclerurus mexicanus macconnelli and
Sclerurus mexicanus bahiae, respectively; (5)
Sclerurus peruvianus, comprising the populations of eastern Andean foothills from Bolivia to eastern Colombia, also reaching the lowlands and outlying ridges in north-western Amazonia."
The five suggested species are thus not exactly the same ones, "paralleled with" should therefore not be read as "concurred with"...
Looking forward to read the paper.
There is also my own short vocal analysis, see:
http://www.hbw.com/sites/default/files/orni-notes/on76_tawny-throated_leaftosser.pdf , which concluded that voice of Central-American races is quite different, while vocal differences of South-American races are more subtle but indeed existent.
Cheers,
Peter
