- Oncostoma cinereigulare
A small flycatcher distinguished from most other species by its pale iris and short, broad, downwards "bent" bill.
 Similar species
Southern Bentbill has a range either adjacent to or overlapping in Panama
Central and South America:
Central America: Mexico, Belize, Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica and Panama; in Panama only known from the western half of Bocas del Toro and westernmost Chiriqui.
South America: found only in Colombia (in NW Antioquia) where it may be known only from a single record.
This is a monotypic species.
Edge, gaps, and the understory of humid forests. Seems to prefer relatively open forest.
Song: a short, buzzy trill.
Food is mainly insects and other invertebrates.
- Clements, JF. 2011. The Clements Checklist of Birds of the World. 6th ed., with updates to August 2011. Ithaca: Cornell Univ. Press. ISBN 978-0801445019. Spreadsheet available at http://www.birds.cornell.edu/clementschecklist/downloadable-clements-checklist
- Birdforum member personal observations
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