Vocal array:The typical song, given by both sexes, consists of well separated phrases of thin clear whistles and transitions (fluty sounds), which is transcribed as "teedleeleé ... tleedleeé ... lee-dah ... lee-doo" (Ridgely and Gwynne 1989) or "teedleedléé… teedlééé… lee-dah… lee-doo" (Collar 2005). Other calls include an upslurred nasal "ghank" (Stiles and Skutch 1989), a liquid "quirt" (Stiles and Skutch 1989), a throaty "rraou" (Collar 2005), and, in alarm, a buzzy "schwee" (Stiles and Skutch 1989, Collar 2005).
Geographic variation: Variation has not been studied extensively.
Phenology: In Costa Rica, song is frequent in March-April, but declines dramatically in May; there is little song through September, but the frequency of singing increases again in October. The incidence of singing then declines again until March (Skutch 1967).
Daily pattern: Daily patterns of singing have not been studied extensively.
Places of vocalizing: The Black-faced Solitaire usually sings from a concealed perch in the canopy (Skutch 1967, Collar 2005).