4 birds starting with the letter O — each with origin, classification, and notes.
If you've been searching for birds that start with O, you'll find 4 detailed birds below. We're not interested in giving you only a list of names — every entry on this page links to a full profile with the kind of detail you'd actually want to know.
For birds, that means taxonomy, habitat, diet, wingspan, migration pattern, and conservation status.
| Oriole | Ostrich | Owl | Oystercatcher |
A vivid orange-and-black North American songbird with elaborate woven hanging nests — closely related to blackbirds, with multiple species across the Americas including the iconic Baltimore oriole that gave the city's baseball team its name.
The world's largest living bird — flightless, two-toed, capable of running at 70 km/h, laying the largest eggs of any bird, and producing meat increasingly farmed across the globe.
A heart-faced, ghostly nocturnal raptor found on every continent except Antarctica, and one of the most efficient rodent-controllers in the natural world.
A boldly pied coastal wader with a long, bright orange bill used as a hammer and lever to open bivalves — conspicuous, loud, and one of the most recognisable shorebirds of rocky coastlines worldwide.
That's our current list of birds starting with the letter O. We add new entries every week — if you have a favorite bird starting with O that isn't on this page, let us know and we'll write it up.
Looking for more? Try birds that end with O, or contain O anywhere in the name.