World Bird List

Species factsheet
Russet-backed Oropendola (Psarocolius angustifrons)

Order: Psarocolius angustifrons
Family: Oropendolas, Orioles, Blackbirds (Icteridae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
salmoni w and c Colombia
atrocastaneus w Ecuador
sincipitalis nc Colombia
neglectus ne Colombia and nw Venezuela
oleagineus nc Venezuela
angustifrons nw Amazonia
alfredi se Ecuador to c Bolivia
Annoncer