Northern Bentbill (Oncostoma cinereigulare) [XC370215]
by Johan Chaves from Bosque de Cinquera, El Salvador (call)
Northern Bentbill (Oncostoma cinereigulare) [XC351202]
by Guillermo Funes from The Lodge at Pico Bonito, El Pino, Atlantida, 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.