The Dusky Long-tailed Cuckoo inhabits forests of central Africa. Its long, graduated tail is distinctive, and it uses the lower forest storey and dense undergrowth.
It has a long, graduated tail, and the sexes look alike.
It uses the lower storey of forest, tall second growth, and dense undergrowth, and feeds mainly on invertebrates. The account also describes it as terrestrial in lowland forest.
An extinction-risk assessment has not been added yet.