241 Birds That Start With O [Complete List]

We’re opening our eyes to observe the outstanding and often overlooked birds that start with O. As we orbit our way through this ornate and original chapter of our birding adventure, we’ll encounter some truly fascinating feathered friends. So, let’s organize our thoughts and optimize our observation skills as we explore these ‘O’mazing birds that start with O.

featured images of Birds That Start With O with several images of birds in peach background

First on our observation list is the Osprey, a powerful bird of prey that is known for its superb fishing skills. The Osprey soars high above water before diving feet-first to grab fish with its sharp talons. Watching an Osprey hunt is like seeing a master at work, teaching us precision and patience—two skills that are perfect for both hunting and learning.

Next, let’s meet the Ostrich, the world’s largest bird. Despite being too heavy to fly, ostriches are famous for their incredible speed on land and their long, powerful legs. With their big eyes and even bigger eggs, ostriches are a marvel of nature that remind us that birds come in all shapes and sizes, each adapted perfectly to their environment.

Then, we will explore the Owl, a mysterious bird known for its wise appearance and nighttime activity. Owls can rotate their heads almost all the way around to see in every direction, and they hunt silently due to their specially designed feathers. Owls inspire us with their stealth and wisdom, showing us the importance of being observant and moving thoughtfully through the world.

Our odyssey into the world of birds that start with O unveils a spectrum of spectacular species, from the hunting Osprey to the speedy Ostrich and the wise Owl. Each bird brings a unique set of adaptations and lessons to share, encouraging us to appreciate the diversity and complexity of nature’s avian creations. So, let’s keep our binoculars ready and our minds open as we continue to discover and learn from the amazing world of birds!

Ready to explore more birds throughout the world? Check out our Birds that start with M and our Birds that start with N.

White text that says "241 Birds That Start With O" on a blue banner. On the top are two images of birds that start with O and on the bottom are another two images.

List of Birds That Start With O

Here is a list of birds that start with O in alphabetical order. How many do you know from this list? Scroll down to learn more about each bird! 

  • Oak Titmouse
  • Oasis Hummingbird
  • Oaxaca Hummingbird
  • Oaxaca Sparrow
  • Obbia Lark
  • Oberholser’s Fruit Dove
  • Oberländer’s Ground Thrush
  • Obi Paradise-crow
  • Obscure Berrypecker
  • Obscure Honeyeater
  • Oceanic Flycatcher
  • Ocellated Antbird
  • Ocellated Crake
  • Ocellated Piculet
  • Ocellated Poorwill
  • Ocellated Quail
  • Ocellated Tapaculo
  • Ocellated Thrasher
  • Ocellated Turkey
  • Ocellated Woodcreeper
  • Ochraceous Attila
  • Ochraceous Bulbul
  • Ochraceous Pewee
  • Ochraceous Piculet
  • Ochraceous Wren
  • Ochraceous-breasted Flycatcher
  • Ochre Oriole
  • Ochre-backed Woodpecker
  • Ochre-bellied Boobook
  • Ochre-bellied Dove
  • Ochre-bellied Flycatcher
  • Ochre-breasted Antpitta
  • Ochre-breasted Brushfinch
  • Ochre-breasted Catbird
  • Ochre-breasted Foliage-gleaner
  • Ochre-breasted Pipit
  • Ochre-breasted Tanager
  • Ochre-browed Thistletail
  • Ochre-cheeked Spinetail
  • Ochre-collared Monarch
  • Ochre-collared Piculet
  • Ochre-faced Tody-flycatcher
  • Ochre-flanked Tapaculo
  • Ochre-fronted Antpitta
  • Ochre-lored Flatbill
  • Ochre-marked Parakeet
  • Ochre-naped Ground Tyrant
  • Ochre-rumped Antbird
  • Ochre-striped Antpitta
  • Oʻahu ʻalauahio
  • Oʻahu ʻamakihi
  • Oʻahu ʻelepaio
  • Oilbird
  • Okarito Kiwi
  • Okinawa Rail
  • Okinawa Woodpecker
  • Oleaginous Hemispingus
  • Olivaceous Elaenia
  • Olivaceous Flatbill
  • Olivaceous Flycatcher
  • Olivaceous Greenlet
  • Olivaceous Piculet
  • Olivaceous Piha
  • Olivaceous Siskin
  • Olivaceous Thornbill
  • Olivaceous Woodcreeper
  • Olive Bee-eater
  • Olive Bulbul
  • Olive Bushshrike
  • Olive Finch
  • Olive Flyrobin
  • Olive Honeyeater
  • Olive Ibis
  • Olive Long-tailed Cuckoo
  • Olive Manakin
  • Olive Oropendola
  • Olive Sparrow
  • Olive Spinetail
  • Olive Straightbill
  • Olive Sunbird
  • Olive Tanager
  • Olive Thrush
  • Olive Tufted Flycatcher
  • Olive Warbler
  • Olive Whistler
  • Olive Woodpecker
  • Olive-backed Euphonia
  • Olive-backed Flowerpecker
  • Olive-backed Foliage-gleaner
  • Olive-backed Oriole
  • Olive-backed Pipit
  • Olive-backed Quail-dove
  • Olive-backed Sunbird
  • Olive-backed Tailorbird
  • Olive-backed Tanager
  • Olive-backed Woodcreeper
  • Olive-backed Woodpecker
  • Olive-bellied Sunbird
  • Olive-breasted Greenbul
  • Olive-brown Oriole
  • Olive-capped Flowerpecker
  • Olive-capped Warbler
  • Olive-chested Flycatcher
  • Olive-colored White-eye
  • Olive-crowned Crescentchest
  • Olive-crowned Flowerpecker
  • Olive-crowned Yellowthroat
  • Olive-faced Flatbill
  • Olive-flanked Ground Robin
  • Olive-green Camaroptera
  • Olive-green Tanager
  • Olive-green Tyrannulet
  • Olive-headed Greenbul
  • Olive-headed Lorikeet
  • Olive-headed Weaver
  • Olive-sided Flycatcher
  • Olive-spotted Hummingbird
  • Olive-striped Flycatcher
  • Olive-throated Parakeet
  • Olive-tree Warbler
  • Olive-winged Bulbul
  • Olomaʻo
  • Olrog’s Cinclodes
  • Olrog’s Gull
  • Olson’s Petrel
  • Omani Owl
  • One-colored Becard
  • Opal-crowned Manakin
  • Opal-crowned Tanager
  • Opal-rumped Tanager
  • Opalton Grasswren
  • Orange Bullfinch
  • Orange Chat
  • Orange Fruit Dove
  • Orange Ground Thrush
  • Orange Minivet
  • Orange Oriole
  • Orange River Francolin
  • Orange River White-eye
  • Orange Weaver
  • Orange-backed Troupial
  • Orange-backed Woodpecker
  • Orange-banded Flycatcher
  • Orange-bellied Antwren
  • Orange-bellied Euphonia
  • Orange-bellied Flowerpecker
  • Orange-bellied Fruit Dove
  • Orange-bellied Leafbird
  • Orange-bellied Manakin
  • Orange-bellied Parrot
  • Orange-billed Babbler
  • Orange-billed Lorikeet
  • Orange-billed Nightingale-thrush
  • Orange-billed Sparrow
  • Orange-breasted Bunting
  • Orange-breasted Bushshrike
  • Orange-breasted Falcon
  • Orange-breasted Fig Parrot
  • Orange-breasted Fruiteater
  • Orange-breasted Green Pigeon
  • Orange-breasted Laughingthrush
  • Orange-breasted Sunbird
  • Orange-breasted Thornbird
  • Orange-breasted Trogon
  • Orange-breasted Waxbill
  • Orange-browed Hemispingus
  • Orange-cheeked Honeyeater
  • Orange-cheeked Parrot
  • Orange-cheeked Waxbill
  • Orange-chinned Parakeet
  • Orange-collared Manakin
  • Orange-crested Flycatcher
  • Orange-crested Manakin
  • Orange-crowned Euphonia
  • Orange-crowned Fairywren
  • Orange-crowned Oriole
  • Orange-crowned Warbler
  • Orange-eared Tanager
  • Orange-eyed Flatbill
  • Orange-eyed Thornbird
  • Orange-footed Scrubfowl
  • Orange-fronted Barbet
  • Orange-fronted Fruit Dove
  • Orange-fronted Hanging Parrot
  • Orange-fronted Parakeet
  • Orange-fronted Plushcrown
  • Orange-fronted Yellow Finch
  • Orange-headed Tanager
  • Orange-headed Thrush
  • Orange-necked Partridge
  • Orange-sided Thrush
  • Orange-spotted Bulbul
  • Orange-throated Sunangel
  • Orange-throated Tanager
  • Orange-tufted Spiderhunter
  • Orange-tufted Sunbird
  • Orange-winged Amazon
  • Orange-winged Pytilia
  • Orangequit
  • Orchard Oriole
  • Oriental Bay Owl
  • Oriental Cuckoo
  • Oriental Darter
  • Oriental Dollarbird
  • Oriental Dwarf Kingfisher
  • Oriental Hobby
  • Oriental Magpie
  • Oriental Magpie-robin
  • Oriental Pied Hornbill
  • Oriental Plover
  • Oriental Pratincole
  • Oriental Reed Warbler
  • Oriental Scops Owl
  • Oriental Skylark
  • Oriental Stork
  • Oriental Turtle Dove
  • Oriente Warbler
  • Orinoco Goose
  • Orinoco Piculet
  • Orinoco Saltator
  • Orinoco Softtail
  • Oriole Blackbird
  • Oriole Finch
  • Oriole Warbler
  • Oriole Whistler
  • Ornate Flycatcher
  • Ornate Fruit Dove
  • Ornate Hawk-eagle
  • Ornate Lorikeet
  • Ornate Melidectes
  • Ornate Stipplethroat
  • Ornate Tinamou
  • Ortolan Bunting
  • Otago Shag
  • Oustalet’s Sunbird
  • Oustalet’s Tyrannulet
  • Outcrop Sabrewing
  • Ouvea Parakeet
  • Ovambo Sparrowhawk
  • Ovenbird
  • Owston’s Tit
A background with a colorful bird border. On the white background there are letters that say "birds that start with O" and a list of all the birds.

Fun Facts about Birds That Start With O

Ready to increase your knowledge of birds that start with O? Dive in and learn more about all the different birds on the list!

A grey background on the left is the letter O in the center of a white circle. On the right is the word "Oak Titmouse" in white lettering with a picture of Oak Titmouse bird below it.
  • Oak Titmouse: A small, friendly gray bird that loves oak forests in California. It has a big voice and likes to chatter away.
  • Oasis Hummingbird: This tiny bird is found in dry areas where it zooms around flowers, drinking nectar with its long beak.
  • Oaxaca Hummingbird: A special hummingbird from Mexico, it has shiny feathers and flits from flower to flower.
  • Oaxaca Sparrow: This sparrow lives in Mexico, in Oaxaca, and likes dry grasslands where it hops around looking for seeds.
  • Obbia Lark: This bird loves the dry lands of Somalia, where it sings beautifully while flying up in the sky.
  • Oberholser’s Fruit Dove: A pretty dove from Indonesia that loves to eat fruit and has a soft, cooing call.
  • Oberländer’s Ground Thrush: This shy bird hides on the forest floors in Africa, eating insects and fallen fruits.
  • Obi Paradise-crow: A sleek, black bird from the Obi Islands, it’s known for its playful behavior and lovely feathers.
  • Obscure Berrypecker: This tiny bird from New Guinea loves to eat berries and is hard to spot in the dense forest.
  • Obscure Honeyeater: Another secretive bird from New Guinea, it has a sweet tooth for nectar and sings sweetly.
  • Oceanic Flycatcher: A small, rare bird that flies over the open ocean, catching insects in mid-air.
  • Ochre Oriole: This bird has lovely golden-yellow feathers and sings a beautiful song in the trees.
  • Ochre-backed Woodpecker: This woodpecker pecks on tree trunks in South America, looking for bugs under the bark.
  • Ochre-bellied Boobook: A type of owl from Australia that hoots at night, hunting for small animals.
  • Ochre-bellied Dove: A gentle dove that lives in South America, walking on the forest floor, pecking for seeds.
  • Ochre-bellied Flycatcher: This little bird catches flies in mid-air in the rainforests of Central and South America.
  • Ochre-breasted Antpitta: A shy, round bird that hops on the ground in South America, eating bugs and staying out of sight.
  • Ochre-breasted Brushfinch: This bird with a pretty ochre chest hops around in the bushes of South America, looking for seeds.
  • Ochre-breasted Catbird: Found in Australia, it meows like a cat and has a beautiful golden belly.
  • Ochre-breasted Foliage-gleaner: This bird loves to pick through leaves in South American forests, looking for insects to snack on.
  • Oilbird: A unique bird that lives in caves in South America and comes out at night to find fruit to eat.
A grey background on the left is the letter O in the center of a white circle. On the right is the word "Oasis Hummingbird" in white lettering with a picture of Oasis Hummingbird below it.
  • Okarito Kiwi: A rare type of kiwi bird from New Zealand, it has a long beak and searches for bugs at night.
  • Okinawa Rail: A rare bird found only in Okinawa, Japan, it walks through forests and wetlands, looking for snails and insects.
  • Okinawa Woodpecker: This special woodpecker is only found in Okinawa, Japan, and likes to tap on trees to find bugs.
  • Oleaginous Hemispingus: A small, colorful bird from the Andes Mountains, it flits around the bushes, eating small fruits and insects.
  • Olivaceous Elaenia: This small flycatcher from Central and South America loves to catch insects in mid-air.
  • Olivaceous Flatbill: A bird with a broad, flat beak, found in the tropical forests of South America, eating insects.
  • Olivaceous Flycatcher: This flycatcher blends into the South American forests where it lives, catching insects quickly with its sharp beak.
  • Olivaceous Greenlet: A tiny bird that blends into the green leaves while it searches for insects in Central and South America.
  • Olivaceous Piculet: A very small woodpecker from South America, it taps on small branches to find its food.
  • Olivaceous Piha: A shy bird from South America, it has a lovely song that echoes through the rainforest.
  • Olivaceous Siskin: A small, chirpy bird with olive green feathers, found in South America, enjoying seeds.
  • Olivaceous Thornbill: A tiny hummingbird from the Andes Mountains, it hovers around flowers to sip nectar with its small beak.
  • Olive Bee-eater: This colorful bird zips through the African skies, catching bees and other insects in its sharp beak.
  • Olive Bulbul: A small, olive-green bird that flits through the forests of Southeast Asia, singing sweetly.
  • Olive Bushshrike: A hidden gem in the African bushes, this bird has a lovely olive color and a strong, melodious call.
  • Olive Finch: Found in the Andes, this small bird pecks the ground for seeds and has a pretty olive color.
  • Olive Flyrobin: A tiny bird from Papua New Guinea, known for its quick movements and olive feathers.
  • Olive Honeyeater: This bird loves the nectar from flowers in Papua New Guinea, and its olive feathers blend into the green leaves.
  • Omani Owl: A recently discovered owl from Oman, mysterious and nocturnal, with a deep hoot.
  • One-colored Becard: This bird from Central and South America has soft, grayish feathers and a calm nature.
A grey background on the left is the letter O in the center of a white circle. On the right is the word "Ochre Oriole" in white lettering with a picture of Ochre Oriole below it.
  • Opal-crowned Manakin: A dazzling bird from the Amazon rainforest, it has a shiny, opal-colored crown and dances beautifully.
  • Opal-crowned Tanager: A colorful bird from the Amazon, it has shiny feathers and loves to eat fruits from the trees.
  • Opal-rumped Tanager: This bird shines like a gem with its opal-colored back and lives in the rainforests of South America.
  • Opalton Grasswren: Found in Australia, this small bird hides in the grass, singing sweetly and hopping around quickly.
  • Orange Bullfinch: A rare bird from the Himalayas, it has a bright orange belly and loves cold, snowy forests.
  • Orange Chat: This Australian bird is bright orange and chatty, often seen sitting on low bushes in dry areas.
  • Orange Fruit Dove: From Fiji, this dove is bright orange like a fruit and can be seen flying through the islands’ forests.
  • Orange Ground Thrush: This colorful bird from Africa loves to walk on the forest floor, looking for insects and fallen fruits.
  • Orange-breasted Thornbird: A bird from South America, it builds large, thorny nests and has a bright orange breast.
  • Orange-breasted Trogon: Found in the forests of Central and South America, this bird has a beautiful orange chest and a calming call.
  • Orange-breasted Waxbill: A tiny bird with a vivid orange belly from Africa, it flits around grasslands, chirping sweetly.
  • Orange-browed Hemispingus: A bird from the Andes, it has an orange stripe above its eyes and hops around in the bushes.
  • Orange-cheeked Honeyeater: This bird from Papua New Guinea has bright orange cheeks and loves to sip nectar from flowers.
  • Orange-cheeked Parrot: A colorful and loud parrot from the Amazon rainforest, it has orange cheeks and loves to eat fruits.
  • Orange-cheeked Waxbill: A small, cute bird from Africa, it has bright orange cheeks and chirps softly in the grass.
  • Orange-winged Pytilia: This small African bird has vivid orange wings and hops around quietly in the bushes.
  • Orangequit: A tiny bird from the Caribbean, it has an orange belly and loves to hop around in the sunshine.
  • Orchard Oriole: A small oriole from North America, it has a sweet song and builds hanging nests in the trees.
  • Oriental Bay Owl: A mysterious owl from Asia, it has a heart-shaped face and hunts at night with a soft hoot.
  • Oriental Cuckoo: This cuckoo travels long distances and lays its eggs in other birds’ nests across Asia.
A grey background on the left is the letter O in the center of a white circle. On the right is the word "Oilbird" in white lettering with a picture of Oilbird below it.
  • Oriental Darter: An expert fisher, this bird dives underwater in Asian wetlands, coming up with fish every time.
  • Oriental Dollarbird: Bright and colorful, this bird from Asia loves to catch insects mid-flight, showing off its shiny feathers.
  • Oriental Dwarf Kingfisher: A tiny, brightly colored kingfisher from Asia, it darts through the rainforest, catching small fish.
  • Oriental Hobby: A fast and agile bird of prey from Asia, it swoops down to catch insects and small birds mid-air.
  • Oriental Magpie: Very smart and social, this bird from Asia is known for its beautiful black and white feathers.
  • Oriental Magpie-robin: Found in gardens and forests of Asia, this little bird has a lovely song and a classy appearance.
  • Oriental Pied Hornbill: A large bird with a huge beak from Asia, it loves to eat fruits and make loud calls.
  • Oriental Plover: This bird travels from Asia to Australia, running on the ground and catching insects with its quick beak.
  • Oriental Pratincole: Found in open fields of Asia, this bird catches insects while flying with its mouth wide open.
  • Oriental Reed Warbler: A hidden singer in the reeds, this bird from Asia has a strong voice and loves marshy areas.
  • Oriental Scops Owl: A small owl with big eyes from Asia, it blends into trees and hoots softly at night.
  • Oriental Skylark: This bird loves open fields in Asia where it sings beautifully while flying high in the sky.
  • Oriental Stork: A tall, majestic bird from Asia, it walks through wetlands looking for fish and frogs.
  • Oriental Turtle Dove: A gentle dove from Asia, it coos softly in the forests and has a lovely patterned neck.
  • Oriente Warbler: A lively little bird from Cuba, it flits through trees, singing and looking for insects.
A grey background on the left is the letter O in the center of a white circle. On the right is the word "Olive Bee-eaater" in white lettering with a picture of Olive Bee-eaater below it.
  • Orinoco Goose: A colorful goose from South America, it likes rivers and lakes where it can swim and find food.
  • Orinoco Piculet: A very small woodpecker from South America, it taps on tree bark, looking for insects.
  • Orinoco Saltator: This bird from South America has a strong voice and jumps around bushes, eating seeds and fruits.
  • Orinoco Softtail: Found in the Orinoco River area, this soft-feathered bird loves to stay hidden in the dense underbrush.
  • Oriole Blackbird: A bright and bold bird from South America, it has a shiny black and yellow body and a melodious call.
  • Oriole Finch: This African bird has a beautiful golden color and a sweet song, often seen flitting in the trees.
  • Oriole Warbler: From Africa, this warbler has a striking appearance with its yellow body and black head.
  • Oriole Whistler: Found in the forests of Papua New Guinea, this bird has a strong whistle and lovely green feathers.
  • Ornate Flycatcher: A tiny bird from South America, it has intricate feather patterns and loves to catch flies.
  • Ornate Fruit Dove: From the rainforests of New Guinea, this dove has colorful, ornate feathers and a gentle coo.
  • Ornate Hawk-eagle: A powerful bird of prey from the rainforests of Central and South America, known for its striking feathers.
  • Ornate Lorikeet: A colorful parrot from Indonesia, it has a rainbow of feathers and a chatty personality.
  • Ornate Melidectes: A unique bird from New Guinea, known for its ornate feathers and loud call.
A grey background on the left is the letter O in the center of a white circle. On the right is the word "Orchard Oriole" in white lettering with a picture of Orchard Oriole below it.
  1. Ornate Stipplethroat: Found in South America, this small bird likes to hop around the forest floor, looking for insects.
  2. Ornate Tinamou: A shy bird from the rainforests of South America, it stays hidden and has beautifully patterned feathers.
  3. Ortolan Bunting: A small songbird from Europe and Asia, it has a sweet song and loves sunny fields.
  4. Otago Shag: A rare seabird from New Zealand, it dives in the ocean to catch fish and nests on rocky cliffs.
  5. Oustalet’s Sunbird: A bright bird from Madagascar, it flits around flowers, drinking nectar with its long beak.
  6. Oustalet’s Tyrannulet: This small bird from South America lives in the treetops and has a sharp call.
  7. Outcrop Sabrewing: A hummingbird from Brazil, it has a long tail and loves to hover around flowers for nectar.
  8. Ouvea Parakeet: A colorful and rare parakeet from the island of Ouvea, it has bright feathers and a playful nature.
  9. Ovambo Sparrowhawk: A sleek bird of prey from Africa, it flies fast and catches other birds in mid-air.
  10. Ovenbird: From North America, this small bird builds a nest on the ground that looks like a little oven.
  11. Owston’s Tit: A rare bird from Japan, it lives in dense forests and has a cute appearance with its small size and bright eyes.

Did you discover some pretty cool birds that start with O on the list? Which one are you excited to see in real life? Share it with us in the comments!

A yellow banner with blue lettering saying "241 Birds That Start With O" above and below that are photos of  birds that start with O

Leave a Reply

%d bloggers like this: