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
Orinoco piculet feathers are brown tipped with green, and the tail is black, the two central feathers having white inner webs and the outer feathers having a white bar near the tip. The beak is blackish and the legs grey. The call is a thin "seep-seep" and the song a rather longer suite of similar notes. The Orinoco piculet is endemic to eastern Colombia and northwestern Brazil, and is likely to be present also in the adjacent part of southern Venezuela. Its habitat is open tropical humid rainforest, gallery forest, wooded savannah and clumps of trees and scrub at altitudes of up