The Southern Bentbill (Oncostoma olivaceum) is a species of bird in the Tyrannidae family. It is found in Colombia and Panama. Its natural habitats are subtropical or tropical moist lowland forests and heavily degraded former forest.
Source
BirdLife International 2004. Oncostoma olivaceum. 2006 IUCN Red List of Threatened Species. Downloaded on 26 July 2007.