The olive oropendola is a species of bird in the family Icteridae, the oropendolas, New World orioles, and New World blackbirds. It is found in Brazil, Bolivia, Colombia, Ecuador, Peru, and Venezuela.
Male Olive oropendola (Psarocolius bifasciatus) in Tiputini, Ecuador mid-display
The caciques are passerine birds in the New World blackbird family which are resident breeders in tropical South America north to Mexico. All of the group are in currently placed in the genus Cacicus,
Nesting colony of the red-rumped cacique (a single bird perched center-left)
Solitary Cacique Pantanal Brazil H8O0547
Cacicus chrysopterus Reserva Guainumbi, Sao Luiz do Paraitinga, Sao Paulo, Brasil 8