Cinereous Antshrike (Thamnomanes caesius) [XC673482]
by Mateus Gon\u00e7alves Santos from Nueva Esperanza, Pando, BO, Bolivia (song, subsong)
Cinereous Antshrike (Thamnomanes caesius) [XC525656]
by Mauricio \u00c1lvarez-Rebolledo (Colecci\u00f3n de Sonidos Ambientales - Instituto Humboldt) from PNN Chiribiquete, cunar\u00e9- Am\u00fa, Colombia (?)
Subspecies
Relationships to other genera unclear. Species currently placed in genus appear to be related on basis of morphology and behaviour, although their nest architecture is somewhat variable. Forms a superspecies with Bluish-slate Antshrike (Thamnomanes schistogynus) and formerly treated as conspecific.
The following 5 subspecies are recognised:
glaucus Cabanis, 1847 - Southern Venezuela (Bolívar, Amazonas), the Guianas, eastern Colombia (southern from Meta and Vichada), northern Brazil (northern Amazonas east to Amapá), eastern Ecuador and north-eastern Peru (north of R Amazon and west of R Ucayali, south to northern Ucayali).
persimilis Hellmayr, 1907 - Central Brazil south of R Amazon (lower R Juruá and lower R Purus east to left bank of R Tapajós, south to northern Rondônia and western Mato Grosso) and extreme north-eastern Bolivia (north-eastern Santa Cruz).
simillimus Gyldenstolpe, 1951 - South-central Amazonian Brazil: known only from middle R Purus.
hoffmannsi Hellmayr, 1906 - East-central Brazil south of R Amazon (from right bank of R Tapajós east to western Maranhío, south to north-eastern Mato Grosso).
caesius (Temminck, 1820) - Coastal eastern Brazil (Pernambuco south to Rio de Janeiro, and inland in R Doce drainage in Minas Gerais).
BirdLife International Species Factsheet