“…Increasing knowledge of flycatcher vocalizations has led to a redefinition of many species boundaries (Browning, ; Reynard, Garrido & Sutton, ; Zimmer & Whittaker, ) and has facilitated the discovery of undescribed species (Schulenberg & Parker, ; Coopmans & Krabbe, ; Álvarez Alonso & Whitney, ; Zimmer, Whittaker & Oren, ; Lane et al ., ). Similarly, molecular phylogenies of tyrannid genera have revealed deep divergences within so‐called species and paraphyletic or polyphyletic arrangements (Chesser, ; Joseph et al ., ; Joseph & Wilke, ; Rheindt, Christidis & Norman, , ; Rheindt, Norman & Christidis, , b; Rheindt et al ., ). A recurring theme has been the agreement of vocal and molecular data on new species boundaries where previous phenotypic data, the bedrock of traditional flycatcher classification, had disagreed (Rheindt et al ., ).…”