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Oilbird - Steatornis caripensis - Guacharo des cavernes
Orange-crowned Warbler - Vermivora celata - Paruline verdâtre
Orange-footed Scrubfowl – Megapodius reinwardt – mégapode de Reinwardt
Orange-winged parrot – Amazona amazonica – Amazone aourou
Oriental Magpie Robin – Copsychus saularis – Shama dayal
Ornate Hawk Eagle - Spizaetus ornatus – Aigle orné
Osprey – Pandion Haliaetus – Balbuzard pêcheur
Ostrich – Struthio camelus - Autruche d’Afrique
Ovenbird – Seiurus aurocapillus – Paruline couronnée