Like other tit-tyrants, Pied-crested Tit-Tyrant is an active forager, primarily gleaning insects from perch or hover, and rarely making aerial sallies. Pied-crested Tit-Tyrant makes short frequent flights moving through shrubbery and is usually found in pairs (Fitzpatrick 2004, Jaramillo 2003). Jaramillo (2003) describes the species as shy and often keeping well hidden in the brush. While foraging, occasionally will flick tail up and drop wings (Fitzpatrick 2004). Pied-crested Tit-Tyrant is usually silent (Ridgely and Tudor 1994).
No information, but the related Tufted Tit-Tyrant (A. parulus) exhibits extreme territoriality and intraspecific aggression (Engilis and Kelt 2009). Ridgely and Tudor (1994) claim Pied-crested Tit-Tyrant has similar behavior to that of Tufted Tit-Tyrant but further investigation is needed.
No information, but Fitzpatrick (2004) suggests tyrant flycatchers are predominately monogamous.
Social and interspecific behavior
Can be found alone or in a mixed species flock. When foraging in a mixed species flock, Pied-crested Tit-Tyrant may be accompanied by Yellow-billed Tit-tyrant (A. flavirostris) above 1900 m (Fjeldså and Krabbe 1990). There is limited information on interspecific interactions. Ridgely and Tudor (1994) claim that Pied-crested Tit-Tyrant has behaviors similar to Tufted Tit-Tyrant (A. parulus); Engilis and Kelt (2009) report no observed interspecific aggression by Tufted Tit-Tyrant although they were around other insectivores of similar size; Tufted Tit-Tyrant was not observed to associate with other species while foraging. Further behavioral studies need to be conducted, particularly in areas of overlap of Anairetes spp.
No information. However, distribution overlaps broadly with that of Peruvian Pygmy-Owl (Glaucidium peruanum), a prolific predator of small birds.