Dusky Bush Tanager (Chlorospingus semifuscus) [XC242387]
by Oscar Laverde from Pichincha: turnoff to Mindo, Ecuador (song)
Dusky Bush Tanager (Chlorospingus semifuscus) [XC71324]
by Tayler Brooks from 9km ENE Mindo, Pichincha, Ecuador (song)
Subspecies
Recent molecular-genetic studies indicate that this genus and Nesospingus, Spindalis and Phaenicophilus form a monophyletic clade that is sister to several New World warbler (Parulidae) genera (including Dendroica, Basileuterus and Vermivora), and are not closely related to other genera of present family. More recent evidence suggests that Chlorospingus is closest to genus Arremonops in family Emberizidae.
The following 2 subspecies are recognised:
livingstoni Bond & Meyer de Schauensee, 1940 - Western slope of western Andes of Colombia from southern Chocó (upper R San Juan) south to Cauca (Munchique area).
semifuscus Sclater & Salvin, 1873 - South-western Colombia (Pacific slope in Nariño) and western slope in Ecuador (south to western Cotopaxi).