| White-eared Puffbird Nystalus chacuru | Galbuliformes / Bucconidae | LC |
| Spot-backed Puffbird Nystalus maculatus | Galbuliformes / Bucconidae | LC |
| Western Striolated Puffbird Nystalus obamai | Galbuliformes / Bucconidae | NE |
| Barred Puffbird Nystalus radiatus | Galbuliformes / Bucconidae | LC |
| Eastern Striolated Puffbird Nystalus striolatus | Galbuliformes / Bucconidae | NE |
| Elliot's Storm Petrel Oceanites gracilis | Procellariiformes / Oceanitidae | DD |
| Pincoya Storm Petrel Oceanites pincoyae | Procellariiformes / Oceanitidae | DD |
| Rock Earthcreeper Ochetorhynchus andaecola | Passeriformes / Furnariidae | LC |
| Crag Chilia Ochetorhynchus melanurus | Passeriformes / Furnariidae | LC |
| Band-tailed Earthcreeper Ochetorhynchus phoenicurus | Passeriformes / Furnariidae | LC |
| Straight-billed Earthcreeper Ochetorhynchus ruficaudus | Passeriformes / Furnariidae | LC |
| Slaty-backed Chat-Tyrant Ochthoeca cinnamomeiventris | Passeriformes / Tyrannidae | LC |
| Brown-backed Chat-Tyrant Ochthoeca fumicolor | Passeriformes / Tyrannidae | LC |
| White-browed Chat-Tyrant Ochthoeca leucophrys | Passeriformes / Tyrannidae | LC |
| Blackish Chat-Tyrant Ochthoeca nigrita | Passeriformes / Tyrannidae | LC |
| D'Orbigny's Chat-Tyrant Ochthoeca oenanthoides | Passeriformes / Tyrannidae | LC |
| Piura Chat-Tyrant Ochthoeca piurae | Passeriformes / Tyrannidae | LC |
| Rufous-breasted Chat-Tyrant Ochthoeca rufipectoralis | Passeriformes / Tyrannidae | LC |
| Tumbes Tyrant Ochthoeca salvini | Passeriformes / Tyrannidae | NT |
| Rufous-browed Chat-Tyrant Ochthoeca superciliosa | Passeriformes / Tyrannidae | LC |
| Maroon-belted Chat-Tyrant Ochthoeca thoracica | Passeriformes / Tyrannidae | LC |
| Drab Water Tyrant Ochthornis littoralis | Passeriformes / Tyrannidae | LC |
| Rufous-booted Racket-tail Ocreatus addae | Apodiformes / Trochilidae | NE |
| Peruvian Racket-tail Ocreatus peruanus | Apodiformes / Trochilidae | NE |
| White-booted Racket-tail Ocreatus underwoodii | Apodiformes / Trochilidae | NE |
| Indian Grey Hornbill Ocyceros birostris | Bucerotiformes / Bucerotidae | LC |
| Sri Lanka Grey Hornbill Ocyceros gingalensis | Bucerotiformes / Bucerotidae | LC |
| Malabar Grey Hornbill Ocyceros griseus | Bucerotiformes / Bucerotidae | VU |
| Crested Pigeon Ocyphaps lophotes | Columbiformes / Columbidae | LC |
| Black-fronted Wood Quail Odontophorus atrifrons | Galliformes / Odontophoridae | LC |
| Stripe-faced Wood Quail Odontophorus balliviani | Galliformes / Odontophoridae | LC |
| Spot-winged Wood Quail Odontophorus capueira | Galliformes / Odontophoridae | LC |
| Venezuelan Wood Quail Odontophorus columbianus | Galliformes / Odontophoridae | NT |
| Tacarcuna Wood Quail Odontophorus dialeucos | Galliformes / Odontophoridae | LC |
| Rufous-fronted Wood Quail Odontophorus erythrops | Galliformes / Odontophoridae | LC |
| Marbled Wood Quail Odontophorus gujanensis | Galliformes / Odontophoridae | LC |
| Spotted Wood Quail Odontophorus guttatus | Galliformes / Odontophoridae | LC |
| Chestnut Wood Quail Odontophorus hyperythrus | Galliformes / Odontophoridae | LC |
| Black-breasted Wood Quail Odontophorus leucolaemus | Galliformes / Odontophoridae | LC |
| Dark-backed Wood Quail Odontophorus melanonotus | Galliformes / Odontophoridae | LC |
| Black-eared Wood Quail Odontophorus melanotis | Galliformes / Odontophoridae | NT |
| Rufous-breasted Wood Quail Odontophorus speciosus | Galliformes / Odontophoridae | LC |
| Starred Wood Quail Odontophorus stellatus | Galliformes / Odontophoridae | LC |
| Gorgeted Wood Quail Odontophorus strophium | Galliformes / Odontophoridae | VU |
| Grey-mantled Wren Odontorchilus branickii | Passeriformes / Troglodytidae | LC |
| Tooth-billed Wren Odontorchilus cinereus | Passeriformes / Troglodytidae | LC |
| Spectacled Longbill Oedistoma iliolophus | Passeriformes / Melanocharitidae | LC |
| Pygmy Longbill Oedistoma pygmaeum | Passeriformes / Melanocharitidae | LC |
| Namaqua Dove Oena capensis | Columbiformes / Columbidae | LC |
| White-fronted Black Chat Oenanthe albifrons | Passeriformes / Muscicapidae | LC |