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Russet-backed Oropendola - BirdForum Opus

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Photo © by John Keep
Amazonia Lodge, Peru, November 2003

Includes Yellow-billed Oropendola

Psarocolius angustifrons


Black bill in the Amazonian lowland form, bill yellowish to greenish or even pink in juveniles in all others.


Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela.



Seven subspecies are recognized[1]:

  • P. a. salmoni:
  • P. a. atrocastaneus:
  • P. a. sincipitalis:
  • West slope of East Andes of Colombia and upper Magdalena Valley
  • P. a. neglectus:
  • East slope of Eastern Andes of Colombia and north-western Venezuela
  • P. a. angustifrons:
  • Tropical south-eastern Colombia to north-eastern Peru and adjacent western Amazonian Brazil
  • P. a. alfredi:
  • P. a. oleagineus:
  • Coastal cordillera of northern Venezuela and interior mountains (Aragua)

Several field guides split this in two species, such that Russet-backed Oropendola becomes monotypic P. angustifrons and all others becoming Yellow-billed Oropendola P. alfredi.


Nominate subspecies in lowlands, most others at some elevation. In all areas moist forests to semi-open areas, mostly near water.





Colonial nester, using hanging woven nests.


  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2017. The eBird/Clements checklist of birds of the world: v2017, with updates to August 2017. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Restall et al. 2006. Birds of Northern South America. Yale University Press. ISBN 9780300124156

Recommended Citation

External Links

GSearch checked for 2020 platform.