Dusky Antbird (Cercomacroides tyrannina) [XC643869]
by Matheus Fernandes Moraes Silva from Camino Comunidad Nasa - Florencia, Caqueta, Colombia (duet)
Dusky Antbird (Cercomacroides tyrannina) [XC835965]
by Scott Olmstead from Caracara\u00ed, Roraima, Brazil (song)
Subspecies
Cercomacra tyrannina (Sibley and Monroe 1990, 1993) has been split into Dusky Antbird (Cercomacroides tyrannina) and M00000503* following SACC (2005).
Probably closest to Willis's Antbird (Cercomacroides laeta), which formerly treated as conspecific. Until recently also included Parker's Antbird (Cercomacroides parkeri) as a highland population in Colombia. These three along with Blackish Antbird (Cercomacroides nigrescens) and Black Antbird (Cercomacroides serva) are considered to form a species group, on basis of plumage and vocal characters, and pending completion of major genetic study. At least some of the plumage differences from which subspecies were described appear to be due to clinal variation; analysis of other parameters, including vocalizations, required in order to define geographical populations more accurately, and ranges listed are therefore provisional. Described subspecies rufiventris (eastern Panama south to western Ecuador) considered synonymous with nominate on basis of recent study of plumage variation.
The following 4 subspecies are recognised:
crepera (Bangs, 1901) - South-eastern Mexico (south-eastern Veracruz, north-eastern Oaxaca and northern Chiapas east to southern Quintana Roo), Belize, and Guatemala and Honduras (Caribbean slope) south to western Panama (western and central Chiriquí, Bocas del Toro, north-western Veraguas).
tyrannina (Sclater, 1855) - Central and eastern Panama (eastern from eastern Chiriquí, western Colón and north-eastern Coclé), Colombia (Pacific slope, lower Cauca and Magdalena Valleys, and east of Andes south to R Caquetá), western Ecuador (south to southern Guayas, one record in El Oro), southern Venezuela (Bolívar, Amazonas) and extreme north-western Brazil (northern Amazonas west of lower R Negro, south to R Japurá).
vicina (Todd, 1927) - North-western Venezuela (southern Zulia south to Táchira and east to Barinas, north-western Apure and western Bolívar) and eastern slope of Andes in northern Colombia (Casanare).
saturatior (Chubb, C, 1918) - The Guianas and north-eastern Amazonian Brazil (Roraima and from east of lower R Negro east to Amapá).