Furnarius rufus; Print; The rufous hornero (Furnarius rufus) is a medium-sized ovenbird in the family Furnariidae. It occurs in eastern South America; and is the national bird in Argentina. Also known as the red ovenbird; it is common in savannas; second-growth scrub; pastures and agricultural land and is synanthropic. Its range includes southeastern and southern Brazil; Bolivia; Paraguay; Uruguay and northern and central Argentina; extending as far south as northern Patagonia. The species is most closely related to the crested hornero of Paraguay and Argentina. There are four accepted subspecies.; 1825-1834