Black-capped Donacobius (Donacobius atricapilla) [XC478219]
by Fernando Igor de Godoy from Sani Lodge, Sucumb\u00edos, Ecuador (call)
Black-capped Donacobius (Donacobius atricapilla) [XC520717]
by Rolf A. de By from fields S of Peperpot plantation, Meerzorg, Commewijne, Suriname (song)
Subspecies
Taxonomy long disputed. Has frequently been thought to belong in family Mimidae. but recent DNA studies, however, strongly suggest that this species is neither a mimid nor a troglodytid, but an aberrant "sylvioid", a group that includes the babblers (Timaliidae) and the Old World warblers (Sylviidae). Species name often erroneously emended to atricapillus, but atricapilla is a Latin noun and is thus invariable.
The following 4 subspecies are recognised:
brachypterus Madarász, 1913 - Panama (eastern Darién) and north-western Colombia (east to Santa Marta region, south to northern Tolima).
atricapilla (Linnaeus, 1766) - Northern Venezuela, the Guianas, most of Brazil, Paraguay and extreme north-eastern Argentina.
nigrodorsalis Traylor, 1948 - Southern and south-eastern Colombia, eastern Ecuador and eastern Peru (south to Madre de Dios).
albovittatus d'Orbigny & Lafresnaye, 1837 - South-western Brazil (Acre) south to northern and eastern Bolivia (Beni, eastern Cochabamba, Santa Cruz).
BirdLife International Species Factsheet