João-de-Barro (Furnarius rufus) is a large ovenbird in Brazil. It is a common species of second-growth scrub, pastures and agricultural land, and the species is often seen near areas of human inhabitation. Its range includes southeastern Brazil. The João-de-Barro feeds on insects and other arthropods obtained by foraging on the ground while walking. The nest of the species is typical for the genus, a large thick clay “oven” placed on a tree, or more recently on man made structures such as fence posts, telephone poles or buildings. Pairs remain together throughout the year and will work on the nest during that time; nests can be constructed in as little as 15 days but are usually completed in 2–3 months