Calcarius ornatus
Ornate White-browed Sparrow
The Ornate White-browed Sparrow, also known as the Chestnut-collared Longspur, is a small, ground-dwelling bird found in...
Birds database
Psarocolius bifasciatus
Oropendola
The Oropendola (Psarocolius bifasciatus) is a striking bird found in the forests and woodlands of Central and South Amer...
Emberiza hortulana
Ortolan Bunting
The Ortolan Bunting is a small passerine bird found in Europe and western Asia. It is known for its distinctive yellow a...
Penelope ortoni
Orton's Guan
Orton's Guan is a species of bird found in the humid forests of the Talamancan montane forests in Costa Rica and western...
Pandion haliaetus
Osprey
The Osprey, also known as the sea hawk, is a large raptor with a wingspan of 1.5 to 1.8 meters. It is easily recognized ...
Cinclodes oustaleti
Oustalet's Cinclodes
Oustalet's Cinclodes is a small, terrestrial bird found in the Andes of South America. It has a distinctive plumage with...
Cinnyris oustaleti
Oustalet's Sunbird
Oustalet's Sunbird (Cinnyris oustaleti) is a small passerine bird found in the forests and woodlands of Madagascar. The ...
Phylloscartes oustaleti
Oustalet's Tyrannulet
Oustalet's Tyrannulet is a small, insectivorous bird found in the subtropical or tropical moist lowland forests and heav...
Accipiter ovampensis
Ovambo sparrowhawk
The Ovambo sparrowhawk (Accipiter ovampensis) is a small bird of prey found in southern Africa. It is known for its dist...
Seiurus aurocapilla
Ovenbird
The Ovenbird (Seiurus aurocapilla) is a small, ground-foraging warbler found in the forests of North America. It is name...
Amytornis oweni
Owen's Grasswren
Owen's Grasswren (Amytornis oweni) is a small, cryptic bird species found in arid and semi-arid regions of Australia. It...
Pyrrhula owstoni
Owston's bullfinch
Owston's bullfinch is a small passerine bird native to the Amami and Okinawa Islands of Japan. It is known for its disti...