Birds, ORN-ROY
Hummingbirds, chickens, flamingos, pheasants: birds may come in all different shapes and sizes, but they all possess feathers, which is the easiest way to distinguish them from all other animals. Although not all species of bird can fly (sorry about that, ostriches), many birds do enjoy the power of flight, and this has permitted an almost unlimited diversification of birds, so that birds are now found virtually everywhere on Earth.
Birds Encyclopedia Articles By Title
ornithology, a branch of zoology dealing with the study of birds. Most of the early writings on birds are more......
oropendola, (genus Psarocolius), any of several bird species of the blackbird family (Icteridae) that are common......
ortolan, (Emberiza hortulana), Eurasian garden and field bird of the family Emberizidae. It grows fat in autumn,......
osprey, (Pandion haliaetus), large, long-winged hawk, about 65 cm (26 inches) long, that lives along seacoasts......
ostrich, (Struthio camelus), large flightless bird found only in open country in Africa. The largest living bird,......
ouzel, (species Turdus torquatus), a thrush of the family Turdidae (order Passeriformes), characterized by a white......
ovenbird, any of over 200 species of small birds, named for building a domed nest with a side entrance, especially......
owl, (order Strigiformes), any member of a homogeneous order of primarily nocturnal raptors found nearly worldwide.......
owlet, commonly, any young owl; the term is also used as the general name for several diminutive African and Southeast......
owlet frogmouth, any of seven or eight species of shy and solitary night birds belonging to the genus Aegotheles......
oxeye, in Britain, any of certain small sandpipers (especially the dunlin; q.v.) and the great tit (titmouse).......
oxpecker, (genus Buphagus), either of the two bird species of the African genus Buphagus, of the family Buphagidae,......
oystercatcher, any of several shorebirds, notable for their long, flattened, orange-red bills, constituting the......
painted snipe, either of two species of marsh birds comprising the family Rostratulidae (order Charadriiformes).......
palm-chat, (species Dulus dominicus), songbird of Hispaniola (Haiti and the Dominican Republic) and nearby Gonâve......
Panuridae, family of songbirds, order Passeriformes, consisting of the parrotbills (see photograph) and bearded......
parakeet, any of numerous seed-eating parrots of small size, slender build, and long, tapering tail. In this sense......
pardalote, (genus Pardalotus), any of four species of Australian songbirds of the family Pardalotidae (order Passeriformes),......
Paridae, songbird family, order Passeriformes, consisting of the titmice and chickadees, about 55 species of small,......
parrot, term applied to a large group of gaudy, raucous birds of the family Psittacidae. Parrot also is used in......
parrotbill, (family Paradoxornithidae), any of several species of small to medium titmouselike birds, mostly brown......
partridge, any of many small game birds native to the Old World and belonging to the family Phasianidae (order......
passenger pigeon, (Ectopistes migratorius), migratory bird hunted to extinction by humans. Billions of these birds......
Passeridae, sparrow weaver family of small gregarious birds, based on the genus Passer, the well-known sparrows.......
passeriform, (order Passeriformes), any member of the largest order of birds and the dominant avian group on Earth......
pauraque, (Nyctidromus albicollis), nocturnal bird of brushlands from southern Texas to northern Argentina. It......
peacock, any of three species of resplendent birds of the pheasant family, Phasianidae (order Galliformes). Strictly,......
peep, any of about a dozen species of small sandpipers. Some are also called oxbirds or oxeyes. See...
pelecaniform, (order Pelecaniformes), any of the relatively large and diverse group of aquatic birds that share......
pelican, any of seven or eight species of water birds in the genus Pelecanus constituting the family Pelecanidae......
A rockhopper penguin on the Falkland IslandsMost penguins are black and white, but the rockhopper penguin—like......
peppershrike, (family Cyclarhidae), either of two species of stout-billed tropical American songbirds (order Passeriformes).......
perching duck, any of the species of the tribe Cairinini, family Anatidae (order Anseriformes), waterfowl that......
peregrine falcon, (Falco peregrinus), the most widely distributed species of bird of prey, with breeding populations......
petrel, any of a number of seabirds of the order Procellariiformes, particularly certain members of the family......
pewee, any of eight species of birds of the genus Contopus (family Tyrannidae); it is named for its call, which......
phalarope, (Greek: “coot-foot”), any of three species of shorebirds that are part of the family Scolopacidae (order......
Phasianidae, the pheasant family, a bird family (order Galliformes) that includes among its members the jungle......
pheasant, any bird of the family Phasianidae (order Galliformes) that is larger than a quail or partridge. Most......
Philepittidae, bird family, order Passeriformes, consisting of the asities and false sunbirds, four species of......
phoebe, (genus Sayornis), any of three species of New World birds in the genus Sayornis of the family Tyrannidae......
Picidae, bird family of the order Piciformes that includes woodpeckers, piculets, and wrynecks. The 210 species......
piciform, (order Piciformes), any member of the group of birds that includes the familiar woodpeckers and their......
piculet, any of about 29 species of small, stub-tailed birds related to the woodpeckers and constituting the subfamily......
pigeon, any of several hundred species of birds constituting the family Columbidae (order Columbiformes). Smaller......
What is the appearance of the pileated woodpecker? The pileated woodpecker has black plumage, a red crest, and......
pintail, any of four species of sleek, long-tailed, long-necked dabbling ducks of the genus Anas (family Anatidae).......
pipit, any of about 50 species of small slender-bodied ground birds in the genera Anthus and Tmetothylacus in the......
pitta, (family Pittidae), any of about 30 species of exceptionally colourful Old World birds making up genus Pitta......
plains wanderer, (species Pedionomus torquatus), Australian bird resembling a tiny quail. It has a mottled reddish......
plantcutter, any of three species of South American birds of the family Phytotomidae (order Passeriformes), with......
Ploceidae, songbird family, order Passeriformes, including the bishops, weavers, and their allies. The approximately......
plover, any of numerous species of plump-breasted birds of the shorebird family Charadriidae (order Charadriiformes).......
plumebird, any of several bird-of-paradise species. See...
pochard, (tribe Aythyini), any of the 14 to 16 species of diving ducks of the tribe Aythyini (family Anatidae,......
Pomatorhinidae, scimitar babbler family of noisy birds, based on the genus Pomatorhinus—in this encyclopaedia classified......
poorwill, (species Phalaenoptilus nuttallii), nocturnal bird of North America belonging to the nightjar family......
potoo, (genus Nyctibius), any of seven species of solitary, nocturnal birds of the American tropics. Its name imitates......
poultry, in animal husbandry, birds raised commercially or domestically for meat, eggs, and feathers. Chickens,......
pratincole, any of six or seven Old World shorebird species constituting the subfamily Glareolinae of the family......
prinia, any bird of the large genus Prinia, belonging to the Old World warbler family, Sylviidae. Prinias are sometimes......
prion, any of several species of small Antarctic seabirds of the genus Pachyptila, in the family Procellariidae......
procellariiform, (order Procellariiformes), any of the group of seabirds that includes the albatrosses (family......
psittaciform, (order Psittaciformes), any member of the group of more than 360 species of generally brightly coloured......
ptarmigan, any of three or four species of partridgelike grouse of cold regions, belonging to the genus Lagopus......
Pteroptochidae, family of Latin American birds, based on the genus Pteroptochas—in this encyclopaedia classified......
puffbird, any of about 34 species of tropical American birds that constitute the family Bucconidae (order Piciformes).......
puffin, any of three species of diving birds that belong to the auk family, Alcidae (order Charadriiformes). They......
pygmy owl, any of about 12 species of small owls in the family Strigidae. They are distributed through parts of......
quail, any of roughly 130 species of small short-tailed game birds classified in the families Phasianidae and Odontophoridae......
quelea, (Quelea quelea), small brownish bird of Africa, belonging to the songbird family Ploceidae (order Passeriformes).......
quetzal, (genus Pharomachrus), any of five species of colourful birds belonging to the genus Pharomachrus of the......
rail, any of 127 species of slender, somewhat chicken-shaped marsh birds, with short rounded wings, short tail,......
rail-babbler, any member of the songbird subfamily Orthonychinae (order Passeriformes), placed by some authorities......
Rallidae, the rail family, a bird family that includes the species known as rail, coot, crake, and gallinule...
raptor, in general, any bird of prey; the term raptor is sometimes restricted to birds of the order Falconiformes......
ratite, any bird whose sternum (breastbone) is smooth, or raftlike, because it lacks a keel to which flight muscles......
raven, any of approximately 10 species of heavy-billed dark birds, larger than crows. Closely related, both ravens......
razor-billed auk, (Alca torda), black and white seabird of the North Atlantic, bearing a sharp, heavy, compressed......
Recurvirostridae, bird family (order Charadriiformes) composed of seven species of moderately large (29–48 cm [11–19......
red-tailed hawk, (Buteo jamaicensis), North American bird of prey (family Accipitridae) best known for its wide......
redhead, (Aythya americana), North American diving duck (family Anatidae), a popular game bird. The redhead breeds......
redshank, either of two species of Old World shorebirds of the family Scolopacidae (order Charadriiformes), characterized......
redstart, any of about 11 bird species of the Old World chat-thrush genus Phoenicurus (family Muscicapidae) or......
reedling, (species Panurus biarmicus), songbird often placed in the family Panuridae (order Passeriformes) but......
Remizidae, bird family (order Passeriformes) that contains the penduline tits and, usually, the verdin. Some authorities......
rhea, either of two species of large, flightless birds in the family Rheidae, order Rheiformes. They are native......
riflebird, any of certain bird-of-paradise (q.v.)...
rifleman, (Acanthisitta chloris), a New Zealand wren of the family...
ring-necked duck, (species Aythya collaris), diving duck (family Anatidae), a popular game bird that is considered......
roadrunner, either of two species of terrestrial cuckoos, especially Geococcyx californianus, of the deserts of......
robin, either of two species of thrushes (family Turdidae) distinguished by an orange or dull reddish breast. The......
rock wren, New Zealand bird belonging to the family Xenicidae (q.v.); also, a true wren of North America (Salpinctes......
rockfowl, either of the two species of western African birds, genus Picathartes, constituting the subfamily Picathartinae,......
rockhopper penguin, either of two species of crested penguins (genus Eudyptes, order Sphenisciformes) characterized......
roller, any of about 12 species of Old World birds constituting the family Coraciidae (order Coraciiformes), named......
rook, (Corvus frugilegus), the most abundant Eurasian bird of the crow family Corvidae (q.v.). It resembles the......
rosefinch, any of the 21 or so species of the genus Carpodacus, of the songbird family Fringillidae. Rosefinches......
rosella, any of several species of popular caged birds, particularly certain Australian species, classified as......
royal penguin, (Eudyptes schlegeli), species of crested penguin (genus Eudyptes, order Sphenisciformes) characterized......