This rather simply, yet attractively plumaged antpitta is uniform warm chestnut or rufous-brown above, with pale yellow underparts. Yellow-breasted Antpitta can appear bold and confident, but like most antpittas it is not easily seen, even when using playback or whistled imitations of its song. Yellow-breasted Antpitta occurs over the Pacific slope of the Andes from Colombia to northwest Ecuador, where it inhabits humid montane forests at 1200–2350 m. Yellow-breasted Antpitta appears to favor ravines and gullies inside mature forest, but there have been no quantitative studies of its habitat preferences. It currently is not considered to be globally threatened, but its conservation status perhaps should be re-evaluated. Only one nest has been described and there is almost nothing known of its diet or general behavior. This account provides novel reproductive information and the first description of juvenile plumage of Yellow-breasted Antpitta.