The White-throated Tyrannulet is a small bird of humid Andean mountain forests. It searches the canopy and the layer below, sometimes joining mixed-species flocks.
It has a white throat, a grey breast that becomes yellower toward the belly, and white or rufous wingbars depending on the subspecies.
It forages in the canopy and subcanopy of humid montane forest, sometimes with mixed-species flocks. It is also recorded in scrub.
An extinction-risk assessment has not been added yet.