It is a species of bird in the family Tyrannidae.
Pseudotriccus: Gr. pseudos= false and trikkos= unknown small bird. ruficeps: L. rufus= red, ruddy and ceps= headed.
It measures ~11 cm (4.3 in). The Rufous-headed Pygmy-Tyrant is uniformly olive-brown with a rufous head and rufous folded wing. The center of the belly is yellowish. The iris is dark and the bill blackThe juvenile does not have a rufous head and wings and is very similar to both the Bronze-olive Pygmy-Tyrant and the Hazel-fronted Pygmy-Tyrant, but ranges at higher elevations and may only have limited overlap.
It is found in Bolivia, Colombia, Ecuador, and Peru.
Its natural habitat is subtropical or tropical moist montane forests of the east slope of the Andes at elevations ranging between 2000-3350 m.
Rufous-headed Pygmy-Tyrant gleans insects from leaves and can occasionally be detected either by bill snapping sounds or abrupt, buzzy vocalizations.
It forages in the understory of humid montane forests where it is generally inconspicuous.