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Category:Taxonomy

From Opus

Ostrich, the largest but flightless birdPhoto by Leon
Ostrich, the largest but flightless bird
Photo by Leon
Vervain Hummingbird, one of the smallest birds on earth Photo by Juan Estevez
Vervain Hummingbird, one of the smallest birds on earth
Photo by Juan Estevez
Aves (all birds)

[edit] Description

All birds are placed in the zoological class Aves. They are vertebrate, warm-blooded animals with wings, two feet and they lay eggs. They are characterised by some unique features:

  • Feathers
  • Laying of hard-shelled eggs
  • Beak without teeth
  • High metabolic rate
  • Strong but lightweight skeleton
  • Heart with four chambers
  • Unique respiratory and digestive systems

The accepted number of species varies in the different sources, but there are about 10'000 species worldwide, found on all continents.

[edit] Taxonomy

Recent fossil finds make it highly likely that the closest relatives of birds were the dinosaurs.

Below is a list of all the orders in the class Aves that are recognized by Opus, which at this level of taxonomy follows the Clements Checklist of Birds of the World. If you are looking for an order that you cannot find in this list, there may be a link to it at the end of this page; in the linked page you should find the families associated with that order as well as a link to the order under which those families are currently listed in Opus.


Class Aves view • edit
Struthioniformes Ostriches, kiwis and allies
Tinamiformes Tinamous
Anseriformes Ducks, geese and allies
Galliformes Fowl and allies
Gaviiformes Loons / divers
Podicipediformes Grebes
Phoenicopteriformes Flamingos
Sphenisciformes Penguins
Procellariiformes Petrels, shearwaters and allies
Pelecaniformes Pelicans, cormorants and allies
Ciconiiformes Storks, herons and allies
Falconiformes Diurnal raptors
Gruiformes Cranes, rails and allies
Cariamiformes Seriemas
Charadriiformes Shorebirds, gulls and allies
Pterocliformes Sandgrouse
Columbiformes Pigeons and allies
Psittaciformes Parrots and allies
Cuculiformes Cuckoos and allies
Strigiformes Owls
Caprimulgiformes Nightjars, frogmouths and allies
Apodiformes Swifts, hummingbirds and allies
Coliiformes Mousebirds
Trogoniformes Trogons and allies
Coraciiformes Kingfishers, hornbills and allies
Galbuliformes Jacamars and allies
Piciformes Woodpeckers and allies
Passeriformes Passerines / perching birds (5,000+ species)

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