oriole, maroon - parrakeet, night
- oriole, maroon
- oriole, Martinique
- oriole, Mell’s maroon
- oriole, Montserrat
- oriole, northern
- oriole, olive-backed
- oriole, orange
- oriole, orange-crowned
- oriole, orchard
- oriole, oriental black-headed
- oriole, ruddy
- oriole, scarlet-headed
- oriole, Scott’s
- oriole, silver
- oriole, spot(ted)-breasted
- oriole, spot(ted)-breasted
- oriole, St. Lucia
- oriole, streaked-backed
- oriole, Timor
- oriole, Wagler’s
- oriole, western black-headed
- oriole, white-bellied
- oriole, white-edged
- oriole, white-lored
- oriole, yellow
- oriole, yellow-backed
- oriole, yellow-tailed
- oriole-finch
- orioles
- orioles, forest
- orioles, golden
- orioles, Old World
- oropendola
- oropendola, band-tailed
- oropendola, black
- oropendola, casqued
- oropendola, Cassin’s
- oropendola, chestnut-headed
- oropendola, chestnut-mantled
- oropendola, crested
