Short-tailed Antthrush (Chamaeza campanisona) [XC260822]
by Mitch Lysinger from Napo: 3 km NW Guagua Sumaco, Ecuador (song)
Short-tailed Antthrush (Chamaeza campanisona) [XC287752]
by Jeremy Minns from Reserva Ecol\u00f3gica de Guapi A\u00e7u (REGUA), RJ, Brazil (song)
Subspecies
Taxonomic divisions uncertain, and subspecies should possibly be grouped into up to four separate species. The four large, dark forms of Venezuelan and Guyanan tepuis (yavii, huachamacarii, obscura, fulvescens) form a group, having voice similar but not identical to that of northern Andean birds. Song recorded in Bolivia also differs distinctly from latter's. Subspecies tshororo considered doubtfully distinct from nominate.
The following 12 subspecies are recognised:
venezuelana Ménégaux & Hellmayr, 1906 - North-western Venezuela in interior chain in Aragua and coastal mountains and Andes west to western Táchira.
obscura Zimmer, JT & Phelps, 1944 - South-eastern Venezuela in Bolívar (including Gran Sabana, except Mt Roraima) and southern Amazonas (Cerro Calentura and Cerro de la Neblina).
fulvescens Salvin & Godman, 1882 - Eastern Venezuela (Mt Roraima) and western Guyana.
columbiana von Berlepsch & Stolzmann, 1896 - Amazonian slope of Andes in Colombia.
punctigula Chapman, 1924 - Eastern Ecuador and northern Peru (north of R Marañón).
olivacea Tschudi, 1844 - Central Peru.
berlepschi Stolzmann, 1926 - South-eastern Peru; presumably also extreme western Bolivia (extreme western La Paz).
boliviana Hellmayr & Seilern, 1912 - Andean slope of Bolivia from La Paz south-east to Santa Cruz.
campanisona (Lichtenstein, 1823) - Eastern and south-eastern Brazil locally in Ceará (Serra do Baturité) and Alagoas (Quebrangulo) and from southern Bahia south to Santa Catarina.
tshororo W. Bertoni, 1901 - Eastern Paraguay, southern Brazil (southern Mato Grosso do Sul, western Paraná, Rio Grande do Sul) and north-eastern Argentina (Misiones, Corrientes).