The Spot-winged Pigeon is a large pigeon of open country in southern South America, from southern Peru, through Bolivia, Paraguay, and much of central Argentina. The Spot-winged Pigeon is comprised of two fairly distinctive subspecies: maculosa is the subspecies of the lowlands, occuring mainly in the chaco desert and surrounding country, south to Patagonia in Chubut. This subspecies shows even spotting to the wing coverts. The subscpecies of the highlands, albilinea, however, shows decreased spotting, with a broad, white slash across the trailing edge of the wing coverts, which create a distinctive appearance. This subspecies occurs in the high andean mountains and plateaus, in northern Argentina, Bolivia, and southern Peru. The Spot-winged Pigeon is similar in size and shape to both the Picazuro Pigeon (Patagioenas picazuro) and the feral Rock Pigeon (Columba livia), but is set apart from both by its white-spangled wing coverts.