Bolivia, Brazil, Colombia, Costa Rica, Ecuador, Panama, Peru, Trinidad and Tobago, Venezuela.
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is unknown (2010).
Status NT
ccelerating deforestation as land is cleared for cattle ranching and soy production, facilitated by expansion of the road network, is the main threat.
For more information see BirdLife International Species Factsheet.
Grey-throated Leaftosser (Sclerurus albigularis) [XC251490]
by Niels Krabbe from Napo: Napo Galeras, Ecuador (call, song)
Grey-throated Leaftosser (Sclerurus albigularis) [XC249833]
by Niels Krabbe from Morona-Santiago: w-slope Cord. de Cutuc\u00fa, Ecuador (call, song)
Subspecies
Plumage similarities and biogeography suggest that this and Rufous-breasted Leaftosser (Sclerurus scansor) may be its sister-species. Pattern of geographical variation generally conforms to Gloger's Rule, with plumage darker in warm, humid areas than in colder, drier ones. Within nominate subspecies, population in Trinidad and Tobago significantly smaller than mainland populations. Racial identity of birds from south-western Brazil (Acre, northern Rondônia) and others reported from southern Bolivia (Tarija) uncertain and presumed to belong to albicollis.
Proposed subspecies kunanensis, of Perijá Mts (Colombia-Venezuela border), described as having belly more greenish-olive, remiges more olivaceous and rectrices blackish, but appears indistinguishable from nominate.
The following 7 subspecies are recognised:
canigularis Ridgway, 1889 - Foothills of Costa Rica and western Panama (western Chiriquí).
propinquus Bangs, 1899 - Santa Marta Mts, in northern Colombia.
albigularis Sclater & Salvin, 1869 - Perijá Mts, also southern in eastern Andes of Colombia (eastern slope south to eastern Cauca, also Macarena Mts) and locally in foothills of western and northern Venezuela (Andes, coastal range east to Sucre on Paria Peninsula). Also Trinidad and Tobago.
zamorae Chapman, 1923 - Foothills of Andes from eastern Ecuador (southern from western Napo) south to central Peru (Cajamarca south to Pasco).
albicollis Carriker, 1935 - South-eastern Peru (Ucayali), south-western Brazil (Acre, northern Rondônia) and Andean foothills in Bolivia (from La Paz and Beni south to north-western Santa Cruz, also sight records from Tarija).
kempffi Kratter, AW, 1997 - Serranía de Huanchaca, in eastern Bolivia (extreme north-eastern Santa Cruz).
BirdLife International Species Factsheet