Plain-breasted piculet Plain-breasted piculet The plain-breasted piculet ("Picumnus castelnau") is a species of bird in the woodpecker family. It is found in the Ucayali and Amazon floodplains in eastern Peru. Its natural habitats are subtropical or tropical moist lowland forests and heavily degraded former forest. A small bird with a short tail, the plain-breasted piculet typically grows to a length of . It is mostly grey on the face and its nape and upper neck are finely barred in an olive green color. Its mantle and back are an olive, brown or grey color with slight pale barring and a light yellowish-brown,
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