Birds · English names
English names: O
Sorted by the recovered historical English common name. The scientific name appears beneath it.
- Ocellated Crake micropygia schomburgkii
- Ocellated Poorwill nyctiphrynus ocellatus
- Ochre-bellied Flycatcher mionectes oleagineus
- Ochre-breasted Foliage-gleaner philydor lichtensteini
- Ochre-breasted Pipit anthus nattereri
- Ochre-cheeked Spinetail poecilurus scutata
- Ochre-collared Piculet picumnus temminckii
- Ochre-faced Tody-Flycatcher todirostrum plumbeiceps
- Ochre-marked Parakeet pyrrhura cruentata
- Ochre-rumped Antbird drymophila ochropyga
- Olivaceous Elaenia elaenia mesoleuca
- Olivaceous Flatbill rhynchocyclus olivaceus
- Olivaceous Woodcreeper sittasomus griseicapillus
- Olive Spinetail cranioleuca obsoleta
- Olive-green Tanager orthogonys chloricterus
- Olive-sided Flycatcher contopus cooperi
- Opal-rumped Tanager tangara velia
- Orange-bellied Euphonia euphonia xanthogaster
- Orange-breasted Falcon falco deiroleucus
- Orange-headed Tanager thlypopsis sordida
- Orange-winged Parrot amazona amazonica
- Ornate Hawk-Eagle spizaetus ornatus
- Osprey pandion haliaetus
- Oustalet's Tyrannulet phylloscartes oustaleti
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