The Yellow-billed Tit-Tyrant is a tiny flycatcher of shrubby Andean slopes as well as shrubby Patagonian regions. It is boldly streaked below, shows wide whitish wingbars and overall more strikingly plumaged than the Tufted Tit-Tyrant (Anairetes parulus) with which it can be found in many areas. When seen up close, the base of the mandible is indeed yellow in this species and sometimes even tending towards orange. Shrubs are the prerequisite habitat component for this flycatcher, and compared to the Tufted Tit-Tyrant it is found in slightly moister sites. Yellow-billed Tit-Tyrants are found from northernmost Peru south through the dry Andean Valleys of Bolivia, entering northernmost Chile and south to Argentine Patagonia.