Description wikipedia

The Ayacucho thistletail (Asthenes ayacuchensis) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is endemic to the Department of Ayacucho, Peru. == Taxonomy and systematics == The Ayacucho thistletail was originally described as a subspecies of the white-chinned thistletail (then Schizoeaca fuliginosa, now Asthenes fuliginosa). It was later treated as conspecific with what is now the Vilcabamba thistletail (Asthenes vilcabambae). These species and several others were long assigned to genus Schizoeaca but genetic data showed that the genus is embedded within Asthenes. A phylogenetic study published in 2015 that examined both DNA sequence data and vocalizations of members of the genus Asthenes found that the Ayacucho thistletail was more similar to the eye-ringed thistletail than it was to the Vilcabamba thistletail. Based on this evidence it was elevated to species rank. The Ayacucho thistletail is monotypic.