Plain-breasted piculet endemic to South America on the eastern side of the Andes where it lives in the western part of the Amazon basin. The species is present in southern Colombia, eastern Ecuador, Peru and western Brazil at altitudes of up to . It is found in open parts of humid lowland forests, flooded forests, riverside corridors, swamps, thickets and groves, and logged areas with secondary growth and wooded pastures. It often occurs in areas of young "Cecropia" and "Mimosa" trees. The plain-breasted piculet is usually seen by itself or in pairs, but it will occasionally joins small flocks of birds of
Ocellated piculet slightly barred. The iris of the eye is black or brown, the beak is blackish and the legs and feet are grey. There is a grey orbital ring around the eye. Juveniles resemble females but are rather darker, with fine barring on the mantle and underparts. The ocellated piculet is native to South America. It is found in the foothills on the eastern side of the Andes, its range extending from Peru and Bolivia to northern Argentina, at altitudes between . Its habitat is primary rainforest and secondary moist forest, where it frequents bushy undergrowth, with vines, creepers and epiphytes.