Tyrant-flycatchers (Tyrannidae)

Southern Bentbill (Oncostoma olivaceum) - HBW 9, p. 317

French: Bec-en-arc de Lawrence German: Gelbkehl-Krummschnabeltyrann Spanish: Mosquerito Piquicurvo Sureño
Other common names: Lawrence’s Bent-billed Tyrant

Taxonomy: Todirostrum olivaceum Lawrence, 1862, Lion Hill, Canal Zone, Panama.
Has been suggested by some authors that genus be joined with closely affiliated Hemitriccus or Lophotriccus; bill morphology and peculiar voice, however, viewed by others as sufficiently distinct to support retention of separate genus. Forms a superspecies with O. cinereigulare, and sometimes considered conspecific. Monotypic.

Distribution: C & E Panama and NW Colombia.