What is "black-backed antshrike"

n. a passerine bird of the antbird family, (taxlink Sakesphorus melanonotus species).

The black-backed antshrike (Thamnophilus melanonotus) is a species of bird in the family Thamnophilidae. It is found in Colombia and Venezuela. Its natural habitat is subtropical or tropical dry forests. It has recently been proposed that it more properly belongs to the genus Thamnophilus (Brumfield et al., 2007).