Bar-breasted piculet measurements, the wing chord is , the tail is , the bill is and the tarsus is . These yellowish green piculets have horizontal barring on the chest and vertical streaking on the belly. Several different subspecies exist throughout their large range. Unfortunately, very little is known about their life history and basic ecology. Bar-breasted piculet The bar-breasted piculet ("Picumnus aurifrons") is a species of bird in the family Picidae. It is found in Bolivia, Brazil, Colombia, and Peru. Its natural habitats are subtropical or tropical moist lowland forests and sometimes in heavily degraded former forest. The bar-breasted piculet is
White-barred piculet with several other species of piculet where their ranges overlap; these include the varzea ("P. varzeae") along the Amazon River, the ochre-collared ("P. temminckii") in southeastern Brazil, the ocellated ("P. dorbignyanus") in Bolivia, and the white-wedged piculet ("P. albosquamatus"), also in Bolivia. The white-barred piculet is between long. The sexes differ in that the male has red streaks or a solid red patch on the fore-crown, while the female lacks this. The rest of the crown is black, speckled with white. The upper parts of the body are tan or olive-brown, faintly barred with white, and the main flight feathers