Northern Bentbill (Oncostoma cinereigulare) [XC28586]
by Doug Knapp from Cockscomb Basin Jaguar Preserve, Dangriga Prov., Belize (call)
Northern Bentbill (Oncostoma cinereigulare) [XC193545]
by Ross Gallardy from Parque Nacional Cerro Azul Me\u00e1mbar, Honduras (call)
Subspecies
Has been suggested by some authors that genus be joined with closely affiliated Hemitriccus or Lophotriccus. However, bill morphology and peculiar voice viewed by others as sufficiently distinct to support retention of separate genus. Forms a superspecies with Southern Bentbill (Oncostoma olivaceum), and sometimes considered conspecific. Distribution somewhat uncertain.