Isthmus of Panama.
Previously considered conspecific with O. semiflavum (which see), but now normally separated, on basis of plumage, voice and habitat; also, no apparent intergradation where ranges come together in Costa Rica. Birds from N Colombia (Santa Marta region) and NW Venezuela described as race dilutum, supposedly slightly paler below on average, but not reliably distinguishable from other populations. Monotypic.
Caribbean slope of Costa Rica S to W & NC Colombia and W Ecuador (El Oro); also locally in NE Colombia and W & N Venezuela (E to S Miranda); recently recorded in S Nicaragua#R.
Food and feeding
Status and conservation
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